diff --git a/package.json b/package.json
index 6bfb878..21d6114 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   "dependencies": {
     "@types/mockjs": "^1.0.2",
     "apollo-server-express": "^2.9.6",
-    "class-transformer": "^0.2.3",
+    "class-transformer": "^0.3.1",
     "express": "^4.17.1",
     "graphql": "^14.5.8",
     "mockjs": "^1.0.1-beta3",
diff --git a/yarn.lock b/yarn.lock
index 0cfb2b8..673ac9b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -699,10 +699,10 @@ ci-info@^1.5.0:
   resolved "https://registry.npmjs.org/ci-info/-/ci-info-1.6.0.tgz#2ca20dbb9ceb32d4524a683303313f0304b1e497"
   integrity sha512-vsGdkwSCDpWmP80ncATX7iea5DWQemg1UgCW5J8tqjU3lYw4FBYuj89J0CTVomA7BEfvSZd84GmHko+MxFQU2A==
 
-class-transformer@^0.2.3:
-  version "0.2.3"
-  resolved "https://registry.yarnpkg.com/class-transformer/-/class-transformer-0.2.3.tgz#598c92ca71dcca73f91ccb875d74a3847ccfa32d"
-  integrity sha512-qsP+0xoavpOlJHuYsQJsN58HXSl8Jvveo+T37rEvCEeRfMWoytAyR0Ua/YsFgpM6AZYZ/og2PJwArwzJl1aXtQ==
+class-transformer@^0.3.1:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/class-transformer/-/class-transformer-0.3.1.tgz#ee681a5439ff2230fc57f5056412d3befa70d597"
+  integrity sha512-cKFwohpJbuMovS8xVLmn8N2AUbAuc8pVo4zEfsUVo8qgECOogns1WVk/FkOZoxhOPTyTYFckuoH+13FO+MQ8GA==
 
 class-utils@^0.3.5:
   version "0.3.6"