diff --git a/package-lock.json b/package-lock.json
index b4ded0e..451e093 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
       "dependencies": {
         "core-js": "^3.8.3",
         "fp-ts": "^2.16.1",
-        "io-ts": "^2.2.20",
+        "io-ts": "^2.2.21",
         "msr": "^1.3.4",
         "screenfull": "^6.0.2",
         "url-join": "^5.0.0",
@@ -6266,9 +6266,9 @@
       "dev": true
     },
     "node_modules/io-ts": {
-      "version": "2.2.20",
-      "resolved": "https://registry.npmjs.org/io-ts/-/io-ts-2.2.20.tgz",
-      "integrity": "sha512-Rq2BsYmtwS5vVttie4rqrOCIfHCS9TgpRLFpKQCM1wZBBRY9nWVGmEvm2FnDbSE2un1UE39DvFpTR5UL47YDcA==",
+      "version": "2.2.21",
+      "resolved": "https://registry.npmjs.org/io-ts/-/io-ts-2.2.21.tgz",
+      "integrity": "sha512-zz2Z69v9ZIC3mMLYWIeoUcwWD6f+O7yP92FMVVaXEOSZH1jnVBmET/urd/uoarD1WGBY4rCj8TAyMPzsGNzMFQ==",
       "peerDependencies": {
         "fp-ts": "^2.5.0"
       }
diff --git a/package.json b/package.json
index 9e2953f..600f075 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
   "dependencies": {
     "core-js": "^3.8.3",
     "fp-ts": "^2.16.1",
-    "io-ts": "^2.2.20",
+    "io-ts": "^2.2.21",
     "msr": "^1.3.4",
     "screenfull": "^6.0.2",
     "url-join": "^5.0.0",