diff --git a/a/package.json b/a/package.json
index 7604754..28b64e8 100644
--- a/a/package.json
+++ b/a/package.json
@@ -7,7 +7,7 @@
     "b": "1.0.0"
   },
   "devDependencies": {
-    "ts-loader": "^7.0.4",
+    "ts-loader": "^8",
     "typescript": "^3.9.3",
     "webpack": "^4.43.0",
     "webpack-cli": "^3.3.11"
diff --git a/yarn.lock b/yarn.lock
index 99f662e..f81707e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2527,10 +2527,10 @@ to-regex@^3.0.1, to-regex@^3.0.2:
     regex-not "^1.0.2"
     safe-regex "^1.1.0"
 
-ts-loader@^7.0.4:
-  version "7.0.4"
-  resolved "https://registry.yarnpkg.com/ts-loader/-/ts-loader-7.0.4.tgz#5d9b95227de5afb91fdd9668f8920eb193cfe0cc"
-  integrity sha512-5du6OQHl+4ZjO4crEyoYUyWSrmmo7bAO+inkaILZ68mvahqrfoa4nn0DRmpQ4ruT4l+cuJCgF0xD7SBIyLeeow==
+ts-loader@^8:
+  version "8.0.0"
+  resolved "https://registry.yarnpkg.com/ts-loader/-/ts-loader-8.0.0.tgz#faf4b1617dcc4a24c2925d92c5b19e9c6621064d"
+  integrity sha512-giEW167rtK1V6eX/DnXEtOgcawwoIp6hqznqYNNSmraUZOq36zMhwBq12JMlYhxf50BC58bscsTSKKtE42zAuw==
   dependencies:
     chalk "^2.3.0"
     enhanced-resolve "^4.0.0"