diff --git a/package.json b/package.json
index f6cdd86..d842dbf 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
     },
     "dependencies": {
         "protobufjs": "5.0.0",
-        "tsutils": "2.20.0"
+        "tsutils": "2.27.2"
     },
     "devDependencies": {
         "@bazel/ibazel": "^0.2.0",
diff --git a/yarn.lock b/yarn.lock
index f8a422d..5845189 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1056,12 +1056,12 @@
     source-map-support "^0.5.0"
 
 tslib@^1.8.1:
-  version "1.9.0"
-  resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.9.0.tgz#e37a86fda8cbbaf23a057f473c9f4dc64e5fc2e8"
+  version "1.9.3"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.9.3.tgz#d7e4dd79245d85428c4d7e4822a79917954ca286"
 
-tsutils@2.20.0:
-  version "2.20.0"
-  resolved "https://registry.yarnpkg.com/tsutils/-/tsutils-2.20.0.tgz#303394064bc80be8ee04e10b8609ae852e9312d3"
+tsutils@2.27.2:
+  version "2.27.2"
+  resolved "https://registry.yarnpkg.com/tsutils/-/tsutils-2.27.2.tgz#60ba88a23d6f785ec4b89c6e8179cac9b431f1c7"
   dependencies:
     tslib "^1.8.1"