diff --git a/lerna.json b/lerna.json
index 52ef867..e404a5e 100644
--- a/lerna.json
+++ b/lerna.json
@@ -2,5 +2,5 @@
   "packages": [
     "packages/*"
   ],
-  "version": "0.1.18"
+  "version": "0.1.19"
 }
diff --git a/packages/estdlib-rxjs/package.json b/packages/estdlib-rxjs/package.json
index 2de8831..d7929a1 100644
--- a/packages/estdlib-rxjs/package.json
+++ b/packages/estdlib-rxjs/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@marcj/estdlib-rxjs",
-  "version": "0.1.18",
+  "version": "0.1.19",
   "description": "engineering stdlib for typescript",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
@@ -20,7 +20,7 @@
     "rxjs": "^6.3.3"
   },
   "devDependencies": {
-    "@marcj/estdlib": "^0.1.18",
+    "@marcj/estdlib": "^0.1.19",
     "rxjs": "^6.3.3"
   },
   "jest": {
diff --git a/packages/estdlib/package.json b/packages/estdlib/package.json
index 6ac4659..e85278d 100644
--- a/packages/estdlib/package.json
+++ b/packages/estdlib/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@marcj/estdlib",
-  "version": "0.1.18",
+  "version": "0.1.19",
   "description": "engineering stdlib for typescript",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",