diff --git a/package.json b/package.json
index ed8407a..f11883b 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
   "dependencies": {
     "babel-runtime": "^6.26.0",
     "jsonwebtoken": "^8.3.0",
-    "stellar-sdk": "^0.8.0"
+    "stellar-sdk": "^8.2.3"
   },
   "devDependencies": {
     "axios": "^0.18.0",
diff --git a/yarn.lock b/yarn.lock
index 6757baf..12f786a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -96,6 +96,28 @@
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/@sindresorhus/is/-/is-0.7.0.tgz#9a06f4f137ee84d7df0460c1fdb1135ffa6c50fd"
 
+"@types/eventsource@^1.1.2":
+  version "1.1.5"
+  resolved "https://registry.yarnpkg.com/@types/eventsource/-/eventsource-1.1.5.tgz#408e9b45efb176c8bea672ab58c81e7ab00d24bc"
+  integrity sha512-BA9q9uC2PAMkUS7DunHTxWZZaVpeNzDG8lkBxcKwzKJClfDQ4Z59/Csx7HSH/SIqFN2JWh0tAKAM6k/wRR0OZg==
+
+"@types/node@*", "@types/node@>= 8":
+  version "15.14.0"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-15.14.0.tgz#74dbf254fb375551a9d2a71faf6b9dbc2178dc53"
+  integrity sha512-um/+/ip3QZmwLfIkWZSNtQIJNVAqrJ92OkLMeuZrjZMTAJniI7fh8N8OICyDhAJ2mzgk/fmYFo72jRr5HyZ1EQ==
+
+"@types/randombytes@^2.0.0":
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/@types/randombytes/-/randombytes-2.0.0.tgz#0087ff5e60ae68023b9bc4398b406fea7ad18304"
+  integrity sha512-bz8PhAVlwN72vqefzxa14DKNT8jK/mV66CSjwdVQM/k3Th3EPKfUtdMniwZgMedQTFuywAsfjnZsg+pEnltaMA==
+  dependencies:
+    "@types/node" "*"
+
+"@types/urijs@^1.19.6":
+  version "1.19.16"
+  resolved "https://registry.yarnpkg.com/@types/urijs/-/urijs-1.19.16.tgz#156658c47438fa867db5dce4d2949fe1ca0878e2"
+  integrity sha512-WgxqcUSEYijGnNWHSln/uqay+AywS3mEhLC+d2PwLsru2fLeMblvxP67Y/SCfB2Pxe+dX/zbIoNNzXY+VKOtNA==
+
 "@webassemblyjs/ast@1.8.5":
   version "1.8.5"
   resolved "https://registry.yarnpkg.com/@webassemblyjs/ast/-/ast-1.8.5.tgz#51b1c5fe6576a34953bf4b253df9f0d490d9e359"
@@ -571,11 +593,12 @@ aws4@^1.6.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.7.0.tgz#d4d0e9b9dbfca77bf08eeb0a8a471550fe39e289"
 
-axios@^0.12.0:
-  version "0.12.0"
-  resolved "https://registry.yarnpkg.com/axios/-/axios-0.12.0.tgz#b907b0221cc34ec1c9fac18ec7f07ddf95785ba4"
+axios@0.21.1:
+  version "0.21.1"
+  resolved "https://registry.yarnpkg.com/axios/-/axios-0.21.1.tgz#22563481962f4d6bde9a76d516ef0e5d3c09b2b8"
+  integrity sha512-dKQiRHxGD9PPRIUNIWvZhPTPpl1rf/OxTYKsqKUDjBwYylTvV7SjSHJb9ratfyzM6wCdLCOYLzs73qpg5c4iGA==
   dependencies:
-    follow-redirects "0.0.7"
+    follow-redirects "^1.10.0"
 
 axios@^0.18.0:
   version "0.18.0"
@@ -1264,12 +1287,6 @@ babel-register@^6.26.0, babel-register@^6.9.0:
     mkdirp "^0.5.1"
     source-map-support "^0.4.15"
 
-babel-runtime@^4.7.16:
-  version "4.7.16"
-  resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-4.7.16.tgz#7a3995ad8c9eb5b4d0dd35febf170d0d1420262b"
-  dependencies:
-    core-js "^0.6.1"
-
 babel-runtime@^6.18.0, babel-runtime@^6.22.0, babel-runtime@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-6.26.0.tgz#965c7058668e82b55d7bfe04ff2337bc8b5647fe"
@@ -1323,15 +1340,21 @@ balanced-match@^1.0.0:
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
   integrity sha1-ibTRmasr7kneFk6gK4nORi1xt2c=
 
-base32.js@~0.1.0:
+base32.js@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/base32.js/-/base32.js-0.1.0.tgz#b582dec693c2f11e893cf064ee6ac5b6131a2202"
+  integrity sha1-tYLexpPC8R6JPPBk7mrFthMaIgI=
 
 base64-js@^1.0.2:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.3.0.tgz#cab1e6118f051095e58b5281aea8c1cd22bfc0e3"
   integrity sha512-ccav/yGvoa80BQDljCxsmmQ3Xvx60/UpBIij5QN21W3wBi/hhIC9OoO+KLpu9IJTS9j4DRVJ3aDDF9cMSoa2lw==
 
+base64-js@^1.3.1:
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.5.1.tgz#1b1b440160a5bf7ad40b650f095963481903930a"
+  integrity sha512-AKpaYlHn8t4SVbOHCy+b5+KKgvR4vrsD8vbvrbiQJps7fKDTkjkDry6ji0rUJjC0kzbNePLwzxq8iypo41qeWA==
+
 base@^0.11.1:
   version "0.11.2"
   resolved "https://registry.yarnpkg.com/base/-/base-0.11.2.tgz#7bde5ced145b6d551a90db87f83c558b4eb48a8f"
@@ -1375,10 +1398,6 @@ binaryextensions@2:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/binaryextensions/-/binaryextensions-2.1.1.tgz#3209a51ca4a4ad541a3b8d3d6a6d5b83a2485935"
 
-bindings@^1.2.1:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/bindings/-/bindings-1.3.0.tgz#b346f6ecf6a95f5a815c5839fc7cdb22502f1ed7"
-
 block-stream@*:
   version "0.0.9"
   resolved "https://registry.yarnpkg.com/block-stream/-/block-stream-0.0.9.tgz#13ebfe778a03205cfe03751481ebb4b3300c126a"
@@ -1386,7 +1405,7 @@ block-stream@*:
   dependencies:
     inherits "~2.0.0"
 
-bluebird@^3.1.5, bluebird@^3.5.1:
+bluebird@^3.5.1:
   version "3.5.1"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.1.tgz#d9551f9de98f1fcda1e683d17ee91a0602ee2eb9"
 
@@ -1576,6 +1595,14 @@ buffer@^4.3.0:
     ieee754 "^1.1.4"
     isarray "^1.0.0"
 
+buffer@^5.1.0:
+  version "5.7.1"
+  resolved "https://registry.yarnpkg.com/buffer/-/buffer-5.7.1.tgz#ba62e7c13133053582197160851a8f648e99eed0"
+  integrity sha512-EHcyIPBQ4BSGlvjB16k5KgAJ27CIsHY/2JBmCRReo48y9rQ3MaUzWX3KVlBa4U7MyX02HdVj0K7C3WaB3ju7FQ==
+  dependencies:
+    base64-js "^1.3.1"
+    ieee754 "^1.1.13"
+
 builtin-modules@^1.0.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/builtin-modules/-/builtin-modules-1.1.1.tgz#270f076c5a72c02f5b65a47df94c5fe3a278892f"
@@ -2021,10 +2048,6 @@ copy-descriptor@^0.1.0:
   resolved "https://registry.yarnpkg.com/copy-descriptor/-/copy-descriptor-0.1.1.tgz#676f6eb3c39997c2ee1ac3a924fd6124748f578d"
   integrity sha1-Z29us8OZl8LuGsOpJP1hJHSPV40=
 
-core-js@^0.6.1:
-  version "0.6.1"
-  resolved "https://registry.yarnpkg.com/core-js/-/core-js-0.6.1.tgz#1b4970873e8101bf8c435af095faa9024f4b9b58"
-
 core-js@^2.4.0, core-js@^2.5.0:
   version "2.5.3"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.5.3.tgz#8acc38345824f16d8365b7c9b4259168e8ed603e"
@@ -2047,9 +2070,12 @@ cosmiconfig@^4.0.0:
     parse-json "^4.0.0"
     require-from-string "^2.0.1"
 
-crc@^3.3.0:
-  version "3.5.0"
-  resolved "https://registry.yarnpkg.com/crc/-/crc-3.5.0.tgz#98b8ba7d489665ba3979f59b21381374101a1964"
+crc@^3.5.0:
+  version "3.8.0"
+  resolved "https://registry.yarnpkg.com/crc/-/crc-3.8.0.tgz#ad60269c2c856f8c299e2c4cc0de4556914056c6"
+  integrity sha512-iX3mfgcTMIq3ZKLIsVFAbv7+Mc10kxabAGQb8HvjA1o3T1PIYprbakQ65d3I+2HGHt6nSKkM9PYjgoJO2KcFBQ==
+  dependencies:
+    buffer "^5.1.0"
 
 create-ecdh@^4.0.0:
   version "4.0.3"
@@ -2140,10 +2166,6 @@ cssom@0.3.x, "cssom@>= 0.3.2 < 0.4.0":
   dependencies:
     cssom "0.3.x"
 
-cursor@^0.1.5:
-  version "0.1.5"
-  resolved "https://registry.yarnpkg.com/cursor/-/cursor-0.1.5.tgz#ea778c2b09d33c2e564fd92147076750483ebb2c"
-
 cyclist@~0.2.2:
   version "0.2.2"
   resolved "https://registry.yarnpkg.com/cyclist/-/cyclist-0.2.2.tgz#1b33792e11e914a2fd6d6ed6447464444e5fa640"
@@ -2322,6 +2344,11 @@ detect-newline@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/detect-newline/-/detect-newline-2.1.0.tgz#f41f1c10be4b00e87b5f13da680759f2c5bfd3e2"
 
+detect-node@^2.0.4:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/detect-node/-/detect-node-2.1.0.tgz#c9c70775a49c3d03bc2c06d9a73be550f978f8b1"
+  integrity sha512-T0NIuQpnTvFDATNuHN5roPwSBG83rFsuO+MXXH9/3N1eFbn4wcPjttvjMLEPWJ0RGUYgQE7cGgS3tNxbqCGM7g==
+
 diff@^3.2.0, diff@^3.3.1, diff@^3.5.0:
   version "3.5.0"
   resolved "https://registry.yarnpkg.com/diff/-/diff-3.5.0.tgz#800c0dd1e0a8bfbc95835c202ad220fe317e5a12"
@@ -2387,13 +2414,6 @@ ecdsa-sig-formatter@1.0.10:
   dependencies:
     safe-buffer "^5.0.1"
 
-ed25519@0.0.4:
-  version "0.0.4"
-  resolved "https://registry.yarnpkg.com/ed25519/-/ed25519-0.0.4.tgz#e56218ace2fc903d259593aef0b2a9639f475beb"
-  dependencies:
-    bindings "^1.2.1"
-    nan "^2.0.9"
-
 editions@^1.3.3:
   version "1.3.4"
   resolved "https://registry.yarnpkg.com/editions/-/editions-1.3.4.tgz#3662cb592347c3168eb8e498a0ff73271d67f50b"
@@ -2502,9 +2522,10 @@ es-to-primitive@^1.1.1:
     is-date-object "^1.0.1"
     is-symbol "^1.0.1"
 
-es6-promise@^3.0.2:
-  version "3.3.1"
-  resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-3.3.1.tgz#a08cdde84ccdbf34d027a1451bc91d4bcd28a613"
+es6-promise@^4.2.4:
+  version "4.2.8"
+  resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.2.8.tgz#4eb21594c972bc40553d276e510539143db53e0a"
+  integrity sha512-HJDGx5daxeIvxdBxvG2cb9g4tEvwIk3i8+nhX0yGrYmZUzbkdg8QbDevheDB8gd0//uPj4c1EQua8Q+MViT0/w==
 
 escape-html@~1.0.3:
   version "1.0.3"
@@ -2681,18 +2702,15 @@ etag@~1.8.1:
   version "1.8.1"
   resolved "https://registry.yarnpkg.com/etag/-/etag-1.8.1.tgz#41ae2eeb65efa62268aebfea83ac7d79299b0887"
 
-event-source-polyfill@0.0.7:
-  version "0.0.7"
-  resolved "https://registry.yarnpkg.com/event-source-polyfill/-/event-source-polyfill-0.0.7.tgz#79ef5047b0c7fd322628da5f87347dd56c665925"
-
 events@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/events/-/events-3.0.0.tgz#9a0a0dfaf62893d92b875b8f2698ca4114973e88"
   integrity sha512-Dc381HFWJzEOhQ+d8pkNon++bk9h6cdAoAj4iE6Q4y6xgTzySWXlKn05/TVNpjnfRqi/X0EpJEJohPjNI3zpVA==
 
-eventsource@^0.2.1:
-  version "0.2.3"
-  resolved "https://registry.yarnpkg.com/eventsource/-/eventsource-0.2.3.tgz#30b8f21b40d86968eaeebd199a95072ee54b0df3"
+eventsource@^1.0.7:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/eventsource/-/eventsource-1.1.0.tgz#00e8ca7c92109e94b0ddf32dac677d841028cfaf"
+  integrity sha512-VSJjT5oCNrFvCS6igjzPAt5hBzQ2qPBFIbJ03zLI9SE0mxwZpMw6BfJrbFHm1a141AavMEB8JHmBhWAd66PfCg==
   dependencies:
     original "^1.0.0"
 
@@ -3046,12 +3064,10 @@ flush-write-stream@^1.0.0:
     inherits "^2.0.3"
     readable-stream "^2.3.6"
 
-follow-redirects@0.0.7:
-  version "0.0.7"
-  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-0.0.7.tgz#34b90bab2a911aa347571da90f22bd36ecd8a919"
-  dependencies:
-    debug "^2.2.0"
-    stream-consume "^0.1.0"
+follow-redirects@^1.10.0:
+  version "1.14.1"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.14.1.tgz#d9114ded0a1cfdd334e164e6662ad02bfd91ff43"
+  integrity sha512-HWqDgT7ZEkqRzBvc2s64vSZ/hfOceEol3ac/7tKwzuvEyWx3/4UegXh5oBOIotkGsObyk3xznnSRVADBgWSQVg==
 
 follow-redirects@^1.3.0:
   version "1.4.1"
@@ -3651,6 +3667,11 @@ iconv-lite@^0.4.17, iconv-lite@^0.4.4:
   dependencies:
     safer-buffer "^2.1.0"
 
+ieee754@^1.1.13:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/ieee754/-/ieee754-1.2.1.tgz#8eb7a10a63fff25d15a57b001586d177d1b0d352"
+  integrity sha512-dcyqhDvX1C46lXZcVqCpK+FtMRQVdIMN6/Df5js2zouUsqG7I6sFxitIC+7KYK29KdXOLHdu9zL4sFnoVQnqaA==
+
 ieee754@^1.1.4:
   version "1.1.13"
   resolved "https://registry.yarnpkg.com/ieee754/-/ieee754-1.1.13.tgz#ec168558e95aa181fd87d37f55c32bbcb6708b84"
@@ -3721,6 +3742,11 @@ ini@^1.3.4, ini@~1.3.0:
   resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.5.tgz#eee25f56db1c9ec6085e0c22778083f596abf927"
   integrity sha512-RZY5huIKCMRWDUqZlEi72f/lmXKMvuszcMBduliQ3nnWbx9X/ZBQO7DijMEYS9EhHBb2qacRUMtC7svLwe0lcw==
 
+ini@^1.3.5:
+  version "1.3.8"
+  resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.8.tgz#a29da425b48806f34767a4efce397269af28432c"
+  integrity sha512-JV/yugV2uzW5iMRSiZAyDtQd+nxtUnjeLt0acNdw98kKLrvuRVyB80tsREOE7yvGVgalhZ6RNXCmEHkUKBKxew==
+
 inquirer@^3.0.6, inquirer@^3.3.0:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-3.3.0.tgz#9dd2f2ad765dcab1ff0443b491442a20ba227dc9"
@@ -4435,15 +4461,13 @@ js-tokens@^3.0.0, js-tokens@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
 
-js-xdr@^1.0.0:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/js-xdr/-/js-xdr-1.0.2.tgz#1af9c9c08a95b8c849056c77f12b5d7013de315c"
+js-xdr@^1.1.3:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/js-xdr/-/js-xdr-1.3.0.tgz#e72e77c00bbdae62689062b95fe35ae2bd90df32"
+  integrity sha512-fjLTm2uBtFvWsE3l2J14VjTuuB8vJfeTtYuNS7LiLHDWIX2kt0l1pqq9334F8kODUkKPMuULjEcbGbkFFwhx5g==
   dependencies:
-    babel-runtime "^4.7.16"
-    cursor "^0.1.5"
-    lodash "^3.5.0"
+    lodash "^4.17.5"
     long "^2.2.3"
-    sequencify "0.0.7"
 
 js-yaml@^3.7.0, js-yaml@^3.9.0, js-yaml@^3.9.1:
   version "3.13.1"
@@ -4858,17 +4882,10 @@ lodash.sortby@^4.7.0:
   version "4.7.0"
   resolved "https://registry.yarnpkg.com/lodash.sortby/-/lodash.sortby-4.7.0.tgz#edd14c824e2cc9c1e0b0a1b42bb5210516a42438"
 
-lodash@^3.5.0:
-  version "3.10.1"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-3.10.1.tgz#5bf45e8e49ba4189e17d482789dfd15bd140b7b6"
-
-lodash@^4.0.1, lodash@^4.13.1, lodash@^4.14.0, lodash@^4.17.2, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0:
-  version "4.17.5"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.5.tgz#99a92d65c0272debe8c96b6057bc8fbfa3bed511"
-
-lodash@^4.2.0:
-  version "4.17.10"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.10.tgz#1b7793cf7259ea38fb3661d4d38b3260af8ae4e7"
+lodash@^4.13.1, lodash@^4.14.0, lodash@^4.17.11, lodash@^4.17.2, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.2.0, lodash@^4.3.0:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
 
 log-symbols@^1.0.2:
   version "1.0.2"
@@ -5235,15 +5252,20 @@ mute-stream@0.0.7:
   version "0.0.7"
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
 
-nan@^2.0.9, nan@^2.9.2:
-  version "2.10.0"
-  resolved "https://registry.yarnpkg.com/nan/-/nan-2.10.0.tgz#96d0cd610ebd58d4b4de9cc0c6828cda99c7548f"
+nan@^2.14.0:
+  version "2.14.2"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.14.2.tgz#f5376400695168f4cc694ac9393d0c9585eeea19"
+  integrity sha512-M2ufzIiINKCuDfBSAUr1vWQ+vuVcA9kqx8JJUsbQi6yf1uGRyb7HfpdfUr5qLXf3B/t8dPvcjhKMmlfnP47EzQ==
 
 nan@^2.3.0:
   version "2.13.2"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.13.2.tgz#f51dc7ae66ba7d5d55e1e6d4d8092e802c9aefe7"
   integrity sha512-TghvYc72wlMGMVMluVo9WRJc0mB8KxxF/gZ4YYFy7V2ZQX9l7rgbPg7vjS9mt6U5HXODVFVI2bOduCzwOMv/lw==
 
+nan@^2.9.2:
+  version "2.10.0"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.10.0.tgz#96d0cd610ebd58d4b4de9cc0c6828cda99c7548f"
+
 nanomatch@^1.2.9:
   version "1.2.13"
   resolved "https://registry.yarnpkg.com/nanomatch/-/nanomatch-1.2.13.tgz#b87a8aa4fc0de8fe6be88895b38983ff265bd119"
@@ -5299,6 +5321,11 @@ node-dir@0.1.8:
   version "0.1.8"
   resolved "https://registry.yarnpkg.com/node-dir/-/node-dir-0.1.8.tgz#55fb8deb699070707fb67f91a460f0448294c77d"
 
+node-gyp-build@^4.1.0:
+  version "4.2.3"
+  resolved "https://registry.yarnpkg.com/node-gyp-build/-/node-gyp-build-4.2.3.tgz#ce6277f853835f718829efb47db20f3e4d9c4739"
+  integrity sha512-MN6ZpzmfNCRM+3t57PTJHgHyw/h4OWnZ6mR8P5j/uZtqQr46RRuDE/P+g3n0YR/AiYXeWixZZzaip77gdICfRg==
+
 node-int64@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/node-int64/-/node-int64-0.4.0.tgz#87a9065cdb355d3182d8f94ce11188b825c68a3b"
@@ -5552,7 +5579,7 @@ once@^1.3.0, once@^1.3.1, once@^1.3.3, once@^1.4.0:
 
 onetime@^1.0.0:
   version "1.1.0"
-  resolved "http://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz#a1f7838f8314c516f05ecefcbc4ccfe04b4ed789"
+  resolved "https://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz#a1f7838f8314c516f05ecefcbc4ccfe04b4ed789"
 
 onetime@^2.0.0:
   version "2.0.1"
@@ -6077,7 +6104,7 @@ randomatic@^1.1.3:
     is-number "^3.0.0"
     kind-of "^4.0.0"
 
-randombytes@^2.0.0, randombytes@^2.0.1, randombytes@^2.0.5:
+randombytes@^2.0.0, randombytes@^2.0.1, randombytes@^2.0.5, randombytes@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/randombytes/-/randombytes-2.1.0.tgz#df6f84372f0270dc65cdf6291349ab7a473d4f2a"
   integrity sha512-vYl3iOX+4CKUWuxGi9Ukhie6fsqXqS9FE2Zaic4tNFD2N2QQaXOMFbuKK4QmDHC0JO6B1Zp41J0LpT0oR68amQ==
@@ -6609,10 +6636,6 @@ send@0.16.2:
     range-parser "~1.2.0"
     statuses "~1.4.0"
 
-sequencify@0.0.7:
-  version "0.0.7"
-  resolved "https://registry.yarnpkg.com/sequencify/-/sequencify-0.0.7.tgz#90cff19d02e07027fd767f5ead3e7b95d1e7380c"
-
 serialize-javascript@^1.4.0:
   version "1.6.1"
   resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-1.6.1.tgz#4d1f697ec49429a847ca6f442a2a755126c4d879"
@@ -6760,6 +6783,15 @@ sntp@2.x.x:
   dependencies:
     hoek "4.x.x"
 
+sodium-native@^2.3.0:
+  version "2.4.9"
+  resolved "https://registry.yarnpkg.com/sodium-native/-/sodium-native-2.4.9.tgz#7a7beb997efdbd2c773a385fb959f0cead5f5162"
+  integrity sha512-mbkiyA2clyfwAyOFIzMvsV6ny2KrKEIhFVASJxWfsmgfUEymgLIS2MLHHcGIQMkrcKhPErRaMR5Dzv0EEn+BWg==
+  dependencies:
+    ini "^1.3.5"
+    nan "^2.14.0"
+    node-gyp-build "^4.1.0"
+
 sort-keys@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/sort-keys/-/sort-keys-2.0.0.tgz#658535584861ec97d730d6cf41822e1f56684128"
@@ -6902,33 +6934,42 @@ stealthy-require@^1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/stealthy-require/-/stealthy-require-1.1.1.tgz#35b09875b4ff49f26a777e509b3090a3226bf24b"
 
-stellar-base@^0.7.6:
-  version "0.7.7"
-  resolved "https://registry.yarnpkg.com/stellar-base/-/stellar-base-0.7.7.tgz#de8b55f0d60097d40b25b0d1aa6fe9e078ea1f7c"
+stellar-base@^5.2.1:
+  version "5.3.0"
+  resolved "https://registry.yarnpkg.com/stellar-base/-/stellar-base-5.3.0.tgz#15e8d9f3767a62bda14d55f0c4347d27987ae1f6"
+  integrity sha512-8LCOX/D/Zp5DBhcTwXQSh9v25sHivkCJc+FSPncqhvMYgvQQg8w+2kj9hCFg1SAxkLJOjSpfzObrUaTl+CFFjw==
   dependencies:
-    base32.js "~0.1.0"
+    base32.js "^0.1.0"
     bignumber.js "^4.0.0"
-    crc "^3.3.0"
-    js-xdr "^1.0.0"
-    lodash "^4.17.4"
+    crc "^3.5.0"
+    js-xdr "^1.1.3"
+    lodash "^4.17.11"
     sha.js "^2.3.6"
-    tweetnacl "^0.14.5"
+    tweetnacl "^1.0.0"
   optionalDependencies:
-    ed25519 "0.0.4"
-
-stellar-sdk@^0.8.0:
-  version "0.8.0"
-  resolved "https://registry.yarnpkg.com/stellar-sdk/-/stellar-sdk-0.8.0.tgz#8a9f251896bb9bf435b50893323d2294a47d0023"
-  dependencies:
-    axios "^0.12.0"
-    bluebird "^3.1.5"
-    es6-promise "^3.0.2"
-    event-source-polyfill "0.0.7"
-    eventsource "^0.2.1"
-    lodash "^4.0.1"
-    stellar-base "^0.7.6"
+    sodium-native "^2.3.0"
+
+stellar-sdk@^8.2.3:
+  version "8.2.3"
+  resolved "https://registry.yarnpkg.com/stellar-sdk/-/stellar-sdk-8.2.3.tgz#2970211877937e487b4e1f88021200cf0ddf8603"
+  integrity sha512-RlrR6DD+706vgA1iVDXteU/x3bdqFDthf+4M3C19D/owmF0GCR/FoRQpnPqqRJ0C/rbbdZ6YjAyKO6Q0GSbDWw==
+  dependencies:
+    "@types/eventsource" "^1.1.2"
+    "@types/node" ">= 8"
+    "@types/randombytes" "^2.0.0"
+    "@types/urijs" "^1.19.6"
+    axios "0.21.1"
+    bignumber.js "^4.0.0"
+    detect-node "^2.0.4"
+    es6-promise "^4.2.4"
+    eventsource "^1.0.7"
+    lodash "^4.17.11"
+    randombytes "^2.1.0"
+    stellar-base "^5.2.1"
     toml "^2.3.0"
-    urijs "1.18.4"
+    tslib "^1.10.0"
+    urijs "^1.19.1"
+    utility-types "^3.7.0"
 
 stream-browserify@^2.0.1:
   version "2.0.2"
@@ -6938,10 +6979,6 @@ stream-browserify@^2.0.1:
     inherits "~2.0.1"
     readable-stream "^2.0.2"
 
-stream-consume@^0.1.0:
-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/stream-consume/-/stream-consume-0.1.1.tgz#d3bdb598c2bd0ae82b8cac7ac50b1107a7996c48"
-
 stream-each@^1.1.0:
   version "1.2.3"
   resolved "https://registry.yarnpkg.com/stream-each/-/stream-each-1.2.3.tgz#ebe27a0c389b04fbcc233642952e10731afa9bae"
@@ -7316,10 +7353,10 @@ trim-right@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
 
-tslib@^1.9.0:
-  version "1.9.3"
-  resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.9.3.tgz#d7e4dd79245d85428c4d7e4822a79917954ca286"
-  integrity sha512-4krF8scpejhaOgqzBEcGM7yDIEfi0/8+8zDRZhNZZ2kjmHJ4hv3zCbQWxoJGz1iw5U0Jl0nma13xzHXcncMavQ==
+tslib@^1.10.0, tslib@^1.9.0:
+  version "1.14.1"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.14.1.tgz#cf2d38bdc34a134bcaf1091c41f6619e2f672d00"
+  integrity sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg==
 
 tty-browserify@0.0.0:
   version "0.0.0"
@@ -7333,10 +7370,15 @@ tunnel-agent@^0.6.0:
   dependencies:
     safe-buffer "^5.0.1"
 
-tweetnacl@^0.14.3, tweetnacl@^0.14.5, tweetnacl@~0.14.0:
+tweetnacl@^0.14.3, tweetnacl@~0.14.0:
   version "0.14.5"
   resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-0.14.5.tgz#5ae68177f192d4456269d108afa93ff8743f4f64"
 
+tweetnacl@^1.0.0:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-1.0.3.tgz#ac0af71680458d8a6378d0d0d050ab1407d35596"
+  integrity sha512-6rt+RN7aOi1nGMyC4Xa5DdYiukl2UWCbcJft7YhxReBGQD7OAM8Pbxw6YMo4r2diNEA8FEmu32YOn9rhaiE5yw==
+
 type-check@~0.3.2:
   version "0.3.2"
   resolved "https://registry.yarnpkg.com/type-check/-/type-check-0.3.2.tgz#5884cab512cf1d355e3fb784f30804b2b520db72"
@@ -7450,9 +7492,10 @@ uri-js@^4.2.2:
   dependencies:
     punycode "^2.1.0"
 
-urijs@1.18.4:
-  version "1.18.4"
-  resolved "https://registry.yarnpkg.com/urijs/-/urijs-1.18.4.tgz#0c97a17a0b0e4a2e635a565c2f16c0f180605e28"
+urijs@^1.19.1:
+  version "1.19.6"
+  resolved "https://registry.yarnpkg.com/urijs/-/urijs-1.19.6.tgz#51f8cb17ca16faefb20b9a31ac60f84aa2b7c870"
+  integrity sha512-eSXsXZ2jLvGWeLYlQA3Gh36BcjF+0amo92+wHPyN1mdR8Nxf75fuEuYTd9c0a+m/vhCjRK0ESlE9YNLW+E1VEw==
 
 urix@^0.1.0:
   version "0.1.0"
@@ -7525,6 +7568,11 @@ util@^0.11.0:
   dependencies:
     inherits "2.0.3"
 
+utility-types@^3.7.0:
+  version "3.10.0"
+  resolved "https://registry.yarnpkg.com/utility-types/-/utility-types-3.10.0.tgz#ea4148f9a741015f05ed74fd615e1d20e6bed82b"
+  integrity sha512-O11mqxmi7wMKCo6HKFt5AhO4BwY3VV68YU07tgxfz8zJTIxr4BpsezN49Ffwy9j3ZpwwJp4fkRwjRzq3uWE6Rg==
+
 utils-merge@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"