diff --git a/WORKSPACE.bazel b/WORKSPACE.bazel
index 5b08bbe..b1ea085 100644
--- a/WORKSPACE.bazel
+++ b/WORKSPACE.bazel
@@ -13,9 +13,9 @@ hedron_compile_commands_setup()
 
 http_archive(
     name = "com_grail_bazel_toolchain",
-    sha256 = "2d9ddd43508e291af01f49edbe5454e54c9a1bce873ca538be76ee5ee03fe874",
-    strip_prefix = "bazel-toolchain-2c25456292f0db67affd469cbdcaac5e07174fa9",
-    url = "https://github.com/grailbio/bazel-toolchain/archive/2c25456292f0db67affd469cbdcaac5e07174fa9.zip",
+    sha256 = "cbb008d74e65bc70a8037bba933aee9dbab06e5319be6f9fabb905392f85bd4c",
+    strip_prefix = "bazel-toolchain-42a2a59ad41f624122732c41899a87d9868940d2",
+    url = "https://github.com/grailbio/bazel-toolchain/archive/42a2a59ad41f624122732c41899a87d9868940d2.zip",
 )
 
 load("@com_grail_bazel_toolchain//toolchain:deps.bzl", "bazel_toolchain_dependencies")