diff --git a/WORKSPACE b/WORKSPACE
index 0f15674babd..ab6db3a6765 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -24,10 +24,10 @@ bazel_skylib_workspace()
 
 http_archive(
     name = "capnp-cpp",
-    sha256 = "e59eea34c7fe2524d49cb59a5fb4ae3cf2ecbbd97b492f3d7ed4828be63a11f9",
-    strip_prefix = "capnproto-capnproto-bfe666c/c++",
+    sha256 = "1e83f2d885f57195fa109d4cd76286d5c96cc66a39d96ba2e583fdb78d5aff3f",
+    strip_prefix = "capnproto-capnproto-b652cf8/c++",
     type = "tgz",
-    urls = ["https://github.com/capnproto/capnproto/tarball/bfe666ca97df24ac04dad008334b88da4ba32612"],
+    urls = ["https://github.com/capnproto/capnproto/tarball/b652cf8a6312f6a473910547f8696cdc9a0f434d"],
 )
 
 http_archive(