diff --git a/package.json b/package.json
index 29ab74b3379f..ab3f7721bd6e 100644
--- a/package.json
+++ b/package.json
@@ -198,7 +198,7 @@
     "style-loader": "^0.23.0",
     "stylelint": "^9.4.0",
     "stylelint-formatter-compact": "^1.1.0",
-    "thread-loader": "^1.2.0",
+    "thread-loader": "sourcegraph/thread-loader#ddbb570ed8de6a44c94c248adc3486fdd3ef7a0c",
     "ts-loader": "^5.0.0",
     "ts-node": "^7.0.1",
     "ts-unused-exports": "^2.0.5",
diff --git a/yarn.lock b/yarn.lock
index b3b4ec808905..e7ced4d57e64 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -10666,10 +10666,9 @@ thenify-all@^1.0.0:
   dependencies:
     any-promise "^1.0.0"
 
-thread-loader@^1.2.0:
+thread-loader@sourcegraph/thread-loader#ddbb570ed8de6a44c94c248adc3486fdd3ef7a0c:
   version "1.2.0"
-  resolved "https://registry.yarnpkg.com/thread-loader/-/thread-loader-1.2.0.tgz#35dedb23cf294afbbce6c45c1339b950ed17e7a4"
-  integrity sha512-acJ0rvUk53+ly9cqYWNOpPqOgCkNpmHLPDGduNm4hDQWF7EDKEJXAopG9iEWsPPcml09wePkq3NF+ZUqnO6tbg==
+  resolved "https://codeload.github.com/sourcegraph/thread-loader/tar.gz/ddbb570ed8de6a44c94c248adc3486fdd3ef7a0c"
   dependencies:
     async "^2.3.0"
     loader-runner "^2.3.0"