diff --git a/artiq-fast/wfvm.nix b/artiq-fast/wfvm.nix
index 114e7d9..2384088 100644
--- a/artiq-fast/wfvm.nix
+++ b/artiq-fast/wfvm.nix
@@ -10,7 +10,7 @@ let
   };
   wfvm = pkgs.fetchgit {
     url = "https://git.m-labs.hk/M-Labs/wfvm.git";
-    rev = "93796f7a711776384177cacefbb43d38c368e2b0";
-    sha256 = "sha256-GMS8mkV+/mLyUoaAO7okP6/hp1PQpYm6DkT8lE2d1nI=";
+    rev = "c7d9060eeef46bebaf376c95ca37c7a65a2ea896";
+    sha256 = "022fb7zpn48hg9qihmqmzqdphks7b7cbnw6f5s1qy1in5c7f8rx9";
   };
 in import "${wfvm}/wfvm" { pkgs = (import wfvm-pkgs {}); }