diff --git a/packages/rndom-redbox/package.json b/packages/rndom-redbox/package.json
index 0722d0847..cfd44b922 100644
--- a/packages/rndom-redbox/package.json
+++ b/packages/rndom-redbox/package.json
@@ -34,7 +34,7 @@
     "rollup-plugin-svelte": "^4.3.0",
     "rollup-plugin-terser": "^2.0.2",
     "serve": "^7.0.0",
-    "svelte": "^2.13.4"
+    "svelte": "^3.49.0"
   },
   "umd:main": "lib/rndom-redbox.umd.js"
 }
diff --git a/packages/rndom-switch/package.json b/packages/rndom-switch/package.json
index c52bccc34..a23a537fd 100644
--- a/packages/rndom-switch/package.json
+++ b/packages/rndom-switch/package.json
@@ -34,7 +34,7 @@
     "rollup-plugin-svelte": "^4.3.0",
     "rollup-plugin-terser": "^2.0.2",
     "serve": "^7.0.0",
-    "svelte": "^2.13.4"
+    "svelte": "^3.49.0"
   },
   "umd:main": "lib/rndom-switch.umd.js"
 }
diff --git a/yarn.lock b/yarn.lock
index 68ee5c4d6..b708ff199 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2489,7 +2489,7 @@ compressible@~2.0.13:
 
 compression@^1.7.1:
   version "1.7.2"
-  resolved "http://registry.npmjs.org/compression/-/compression-1.7.2.tgz#aaffbcd6aaf854b44ebb280353d5ad1651f59a69"
+  resolved "https://registry.npmjs.org/compression/-/compression-1.7.2.tgz#aaffbcd6aaf854b44ebb280353d5ad1651f59a69"
   dependencies:
     accepts "~1.3.4"
     bytes "3.0.0"
@@ -6865,7 +6865,7 @@ once@^1.3.0, once@^1.3.1, 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"
@@ -8769,9 +8769,10 @@ supports-color@^5.3.0:
   dependencies:
     has-flag "^3.0.0"
 
-svelte@^2.13.4:
-  version "2.13.4"
-  resolved "https://registry.yarnpkg.com/svelte/-/svelte-2.13.4.tgz#17e5e942792faa0dcde069344b30c915ba3993e5"
+svelte@^3.49.0:
+  version "3.49.0"
+  resolved "https://registry.yarnpkg.com/svelte/-/svelte-3.49.0.tgz#5baee3c672306de1070c3b7888fc2204e36a4029"
+  integrity sha512-+lmjic1pApJWDfPCpUUTc1m8azDqYCG1JN9YEngrx/hUyIcFJo6VZhj0A1Ai0wqoHcEIuQy+e9tk+4uDgdtsFA==
 
 symbol-observable@1.0.1:
   version "1.0.1"