diff --git a/package-lock.json b/package-lock.json
index 0927738..4baebbe 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -7825,7 +7825,7 @@
         },
         "readable-stream": {
           "version": "2.3.6",
-          "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
           "integrity": "sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==",
           "dev": true,
           "requires": {
@@ -8764,7 +8764,7 @@
         },
         "readable-stream": {
           "version": "2.3.6",
-          "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
           "integrity": "sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==",
           "dev": true,
           "requires": {
@@ -11630,9 +11630,9 @@
       "dev": true
     },
     "lazysizes": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/lazysizes/-/lazysizes-4.0.1.tgz",
-      "integrity": "sha1-Qo/pVh1/9cOysnh7eO1UCAmGQgs="
+      "version": "5.2.1",
+      "resolved": "https://registry.npmjs.org/lazysizes/-/lazysizes-5.2.1.tgz",
+      "integrity": "sha512-607dEMlbcnkny2lGYVqoA/rQO+WGpWh/BISeS1eLfT8nHQw6E+R8ybJoKKGVlZ2czKPTATrsU95f+nkwix0fXw=="
     },
     "lazystream": {
       "version": "1.0.0",
@@ -14252,7 +14252,7 @@
         },
         "readable-stream": {
           "version": "2.3.6",
-          "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
           "integrity": "sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==",
           "dev": true,
           "requires": {
@@ -15195,7 +15195,7 @@
         },
         "readable-stream": {
           "version": "2.3.6",
-          "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
           "integrity": "sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==",
           "dev": true,
           "requires": {
@@ -18942,7 +18942,7 @@
         },
         "readable-stream": {
           "version": "2.3.6",
-          "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
           "integrity": "sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==",
           "dev": true,
           "requires": {
diff --git a/package.json b/package.json
index 6edbabe..cf409ee 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,7 @@
   "dependencies": {
     "fg-loadcss": "^1.3.1",
     "jquery": "^3.4.1",
-    "lazysizes": "^4.0.1",
+    "lazysizes": "^5.2.1",
     "normalize.css": "^7.0.0",
     "picturefill": "^3.0.2",
     "velocity-animate": "^1.5.0"