diff --git a/package.json b/package.json
index 20afccb..80664a0 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
   },
   "devDependencies": {
     "ajv-cli": "2.1.0",
-    "typescript": "2.6.2"
+    "typescript": "3.1.6"
   },
   "repository": {
     "type": "git",
diff --git a/yarn.lock b/yarn.lock
index e65a868..a73c86b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -200,9 +200,9 @@ sigmund@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/sigmund/-/sigmund-1.0.1.tgz#3ff21f198cad2175f9f3b781853fd94d0d19b590"
 
-typescript@2.6.2:
-  version "2.6.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.6.2.tgz#3c5b6fd7f6de0914269027f03c0946758f7673a4"
+typescript@3.1.6:
+  version "3.1.6"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.1.6.tgz#b6543a83cfc8c2befb3f4c8fba6896f5b0c9be68"
 
 wrappy@1:
   version "1.0.2"