diff --git a/package.json b/package.json
index cfc07b15..b498ce9b 100644
--- a/package.json
+++ b/package.json
@@ -59,7 +59,7 @@
     "prettier": "^1.18.2",
     "semantic-release": "^15.13.3",
     "sourcegraph": "^23.0.1",
-    "ts-node": "^8.1.0",
+    "ts-node": "^8.5.4",
     "tslint": "^5.20.1",
     "typescript": "^3.4.5"
   },
diff --git a/yarn.lock b/yarn.lock
index b2eb5fc4..4c3aba7e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1502,7 +1502,7 @@ dezalgo@^1.0.0, dezalgo@~1.0.3:
     asap "^2.0.0"
     wrappy "1"
 
-diff@3.5.0, diff@^3.1.0:
+diff@3.5.0:
   version "3.5.0"
   resolved "https://registry.npmjs.org/diff/-/diff-3.5.0.tgz#800c0dd1e0a8bfbc95835c202ad220fe317e5a12"
   integrity sha512-A46qtFgd+g7pDZinpnwiRJtxbC1hpgf0uzP3iG89scHk0AUC7A1TGxf5OiiOUv/JMZR8GOt8hL900hV0bOy5xA==
@@ -5418,13 +5418,13 @@ trim-right@^1.0.1:
   resolved "https://registry.npmjs.org/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
   integrity sha1-yy4SAwZ+DI3h9hQJS5/kVwTqYAM=
 
-ts-node@^8.1.0:
-  version "8.1.0"
-  resolved "https://registry.npmjs.org/ts-node/-/ts-node-8.1.0.tgz#8c4b37036abd448577db22a061fd7a67d47e658e"
-  integrity sha512-34jpuOrxDuf+O6iW1JpgTRDFynUZ1iEqtYruBqh35gICNjN8x+LpVcPAcwzLPi9VU6mdA3ym+x233nZmZp445A==
+ts-node@^8.5.4:
+  version "8.5.4"
+  resolved "https://registry.yarnpkg.com/ts-node/-/ts-node-8.5.4.tgz#a152add11fa19c221d0b48962c210cf467262ab2"
+  integrity sha512-izbVCRV68EasEPQ8MSIGBNK9dc/4sYJJKYA+IarMQct1RtEot6Xp0bXuClsbUSnKpg50ho+aOAx8en5c+y4OFw==
   dependencies:
     arg "^4.1.0"
-    diff "^3.1.0"
+    diff "^4.0.1"
     make-error "^1.1.1"
     source-map-support "^0.5.6"
     yn "^3.0.0"