diff --git a/explorer/package-lock.json b/explorer/package-lock.json
index 72540eaf44..5b9b791872 100644
--- a/explorer/package-lock.json
+++ b/explorer/package-lock.json
@@ -15326,9 +15326,9 @@
       "integrity": "sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c="
     },
     "typescript": {
-      "version": "3.8.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.8.3.tgz",
-      "integrity": "sha512-MYlEfn5VrLNsgudQTVJeNaQFUAI7DkhnOjdpAp4T+ku1TfQClewlbSuTVHiA+8skNBgaf02TL/kLOvig4y3G8w=="
+      "version": "3.9.5",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.5.tgz",
+      "integrity": "sha512-hSAifV3k+i6lEoCJ2k6R2Z/rp/H3+8sdmcn5NrS3/3kE7+RyZXm9aqvxWqjEXHAd8b0pShatpcdMTvEdvAJltQ=="
     },
     "unicode-canonical-property-names-ecmascript": {
       "version": "1.0.4",
diff --git a/explorer/package.json b/explorer/package.json
index 7f55550c1d..57a3f52379 100644
--- a/explorer/package.json
+++ b/explorer/package.json
@@ -24,7 +24,7 @@
     "react-router-dom": "^5.1.2",
     "react-scripts": "3.4.1",
     "solana-sdk-wasm": "file:wasm/pkg",
-    "typescript": "^3.8.0",
+    "typescript": "^3.9.5",
     "wasm-loader": "^1.3.0"
   },
   "scripts": {