diff --git a/WORKSPACE b/WORKSPACE
index 8e259c56c5..20ce8a2549 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -52,11 +52,11 @@ skydoc_repositories()
 
 http_archive(
     name = "bazel_toolchains",
-    sha256 = "cefb6ccf86ca592baaa029bcef04148593c0efe8f734542f10293ea58f170715",
-    strip_prefix = "bazel-toolchains-cdea5b8675914d0a354d89f108de5d28e54e0edc",
+    sha256 = "4ab012a06e80172b1d2cc68a69f12237ba2c4eb47ba34cb8099830d3b8c43dbc",
+    strip_prefix = "bazel-toolchains-646207624ed58c9dc658a135e40e578f8bbabf64",
     urls = [
-        "https://mirror.bazel.build/github.com/bazelbuild/bazel-toolchains/archive/cdea5b8675914d0a354d89f108de5d28e54e0edc.tar.gz",
-        "https://github.com/bazelbuild/bazel-toolchains/archive/cdea5b8675914d0a354d89f108de5d28e54e0edc.tar.gz",
+        "https://mirror.bazel.build/github.com/bazelbuild/bazel-toolchains/archive/646207624ed58c9dc658a135e40e578f8bbabf64.tar.gz",
+        "https://github.com/bazelbuild/bazel-toolchains/archive/646207624ed58c9dc658a135e40e578f8bbabf64.tar.gz",
     ],
 )