diff --git a/apps/holorea-graphql-explorer/package.json b/apps/holorea-graphql-explorer/package.json
index 5a13e3fb0..e88e6b35c 100644
--- a/apps/holorea-graphql-explorer/package.json
+++ b/apps/holorea-graphql-explorer/package.json
@@ -20,7 +20,7 @@
     "babel-plugin-macros": "^2.5.1",
     "react-scripts": "3.0.1",
     "source-map-loader": "^0.2.4",
-    "typescript": "3.4.5"
+    "typescript": "3.8"
   },
   "scripts": {
     "start": "REACT_APP_HC_CONN_URL='ws://localhost:4001' BROWSER=none react-scripts start",
diff --git a/modules/graphql-client/package.json b/modules/graphql-client/package.json
index 19b3ad4f1..bdbf4019a 100644
--- a/modules/graphql-client/package.json
+++ b/modules/graphql-client/package.json
@@ -40,6 +40,6 @@
     "tslib": "1.10.0",
     "tslint": "5.16.0",
     "tslint-config-standard": "8.0.1",
-    "typescript": "3.4.5"
+    "typescript": "3.8"
   }
 }
diff --git a/modules/vf-graphql-holochain/package.json b/modules/vf-graphql-holochain/package.json
index c81ab4791..81ab40bbb 100644
--- a/modules/vf-graphql-holochain/package.json
+++ b/modules/vf-graphql-holochain/package.json
@@ -50,6 +50,6 @@
     "tslib": "1.10.0",
     "tslint": "5.16.0",
     "tslint-config-standard": "8.0.1",
-    "typescript": "3.4.5"
+    "typescript": "3.8"
   }
 }