diff --git a/package.json b/package.json
index 4f97dfa0..ad4b4c82 100644
--- a/package.json
+++ b/package.json
@@ -55,7 +55,7 @@
     "ts-node": "^5.0.1",
     "tsickle": "0.33.1",
     "tslint": "^5.9.1",
-    "tsutils": "2.27.2",
+    "tsutils": "3.17.1",
     "typescript": "~3.1.6"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index d1019cb9..573581cc 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2434,6 +2434,13 @@ tsutils@2.27.2:
   dependencies:
     tslib "^1.8.1"
 
+tsutils@3.17.1:
+  version "3.17.1"
+  resolved "https://registry.yarnpkg.com/tsutils/-/tsutils-3.17.1.tgz#ed719917f11ca0dee586272b2ac49e015a2dd759"
+  integrity sha512-kzeQ5B8H3w60nFY2g8cJIuH7JDpsALXySGtwGJ0p2LSjLgay3NdIpqq5SoOBe46bKDW2iq25irHCr8wjomUS2g==
+  dependencies:
+    tslib "^1.8.1"
+
 tsutils@^2.29.0:
   version "2.29.0"
   resolved "https://registry.yarnpkg.com/tsutils/-/tsutils-2.29.0.tgz#32b488501467acbedd4b85498673a0812aca0b99"