diff --git a/package.json b/package.json
index 6529702f..d4ec351a 100644
--- a/package.json
+++ b/package.json
@@ -51,7 +51,7 @@
     "minimist": "^1.2.0",
     "mocha": "^6.2.1",
     "mocha-spec-json-output-reporter": "^1.1.6",
-    "source-map-support": "^0.4.18",
+    "source-map-support": "^0.5.18",
     "ts-node": "^8.4.1",
     "tsickle": "0.33.1",
     "tslint": "^5.9.1",
diff --git a/yarn.lock b/yarn.lock
index b50f680f..6d92635f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2189,16 +2189,10 @@ source-map-support@0.5.9:
     buffer-from "^1.0.0"
     source-map "^0.6.0"
 
-source-map-support@^0.4.18:
-  version "0.4.18"
-  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.4.18.tgz#0286a6de8be42641338594e97ccea75f0a2c585f"
-  dependencies:
-    source-map "^0.5.6"
-
-source-map-support@^0.5.6:
-  version "0.5.13"
-  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.13.tgz#31b24a9c2e73c2de85066c0feb7d44767ed52932"
-  integrity sha512-SHSKFHadjVA5oR4PPqhtAVdcBWwRYVd6g6cAXnIbRiIwc2EhPrTuKUBdSLvlEKyIP3GCf89fltvcZiP9MMFA1w==
+source-map-support@^0.5.18, source-map-support@^0.5.6:
+  version "0.5.18"
+  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.18.tgz#f5f33489e270bd7f7d7e7b8debf283f3a4066960"
+  integrity sha512-9luZr/BZ2QeU6tO2uG8N2aZpVSli4TSAOAqFOyTO51AJcD9P99c0K1h6dD6r6qo5dyT44BR5exweOaLLeldTkQ==
   dependencies:
     buffer-from "^1.0.0"
     source-map "^0.6.0"