diff --git a/WORKSPACE b/WORKSPACE
index 4ca1d78..3cfddf0 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -4,9 +4,9 @@ load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 
 http_archive(
     name = "com_grail_bazel_toolchain",
-    sha256 = "4f7782654b12e6b0231a98c98bae546d7c7c3156dde5792581dcf6e50e5cbca8",
-    strip_prefix = "bazel-toolchain-f14a8a5de8f7e98a011a52163d4855572c07a1a3",
-    url = "https://github.com/grailbio/bazel-toolchain/archive/f14a8a5de8f7e98a011a52163d4855572c07a1a3.zip",
+    sha256 = "9954c7c9b9afad044f135e602ae51da6c4f98086a53626038dcf6088a1accb35",
+    strip_prefix = "bazel-toolchain-4ff4da7006df6cbf443335c7d0874a49261771c4",
+    url = "https://github.com/grailbio/bazel-toolchain/archive/4ff4da7006df6cbf443335c7d0874a49261771c4.zip",
 )
 
 load("@com_grail_bazel_toolchain//toolchain:deps.bzl", "bazel_toolchain_dependencies")