diff --git a/WORKSPACE b/WORKSPACE
index 14056a70d2..4e706a0171 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -48,7 +48,7 @@ node_repositories(
     node_version = "10.9.0",
     package_json = ["//:package.json"],
     preserve_symlinks = True,
-    yarn_version = "1.13.0",
+    yarn_version = "1.12.1",
 )
 
 yarn_install(
diff --git a/integration/bazel/WORKSPACE b/integration/bazel/WORKSPACE
index 6704e8b0fe..4823e9ecae 100644
--- a/integration/bazel/WORKSPACE
+++ b/integration/bazel/WORKSPACE
@@ -37,7 +37,7 @@ Try running `yarn bazel` instead.
 # Setup the Node.js toolchain
 node_repositories(
     node_version = "10.9.0",
-    yarn_version = "1.13.0",
+    yarn_version = "1.12.1",
 )
 
 # Install our npm dependencies into @npm