diff --git a/package-lock.json b/package-lock.json
index ae26f4c..8a4e5d4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1287,9 +1287,9 @@
       }
     },
     "@types/isomorphic-fetch": {
-      "version": "0.0.35",
-      "resolved": "https://registry.npmjs.org/@types/isomorphic-fetch/-/isomorphic-fetch-0.0.35.tgz",
-      "integrity": "sha512-DaZNUvLDCAnCTjgwxgiL1eQdxIKEpNLOlTNtAgnZc50bG2copGhRrFN9/PxPBuJe+tZVLCbQ7ls0xveXVRPkvw==",
+      "version": "0.0.36",
+      "resolved": "https://registry.npmjs.org/@types/isomorphic-fetch/-/isomorphic-fetch-0.0.36.tgz",
+      "integrity": "sha512-ulw4d+vW1HKn4oErSmNN2HYEcHGq0N1C5exlrMM0CRqX1UUpFhGb5lwiom5j9KN3LBJJDLRmYIZz1ghm7FIzZw==",
       "dev": true
     },
     "@types/istanbul-lib-coverage": {
diff --git a/package.json b/package.json
index f17e86a..8ed4124 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
   },
   "homepage": "https://github.com/open-rpc/client-js#readme",
   "devDependencies": {
-    "@types/isomorphic-fetch": "0.0.35",
+    "@types/isomorphic-fetch": "0.0.36",
     "@types/jest": "^26.0.3",
     "@types/serve-handler": "^6.1.0",
     "@types/websocket": "1.0.5",