diff --git a/artiq-fast/pkgs/python-deps.nix b/artiq-fast/pkgs/python-deps.nix
index 1abcd96..251482b 100644
--- a/artiq-fast/pkgs/python-deps.nix
+++ b/artiq-fast/pkgs/python-deps.nix
@@ -77,8 +77,8 @@ rec {
       then (fetchFromGitHub {
         owner = "m-labs";
         repo = "misoc";
-        rev = "51ea207bfbc03a552071df0bbf770913ba904217";
-        sha256 = "sha256-5dRDFxwKye4X6QQkdNma3SJknPXZDUUyF9GUwgS1Otc=";
+        rev = "f5203e406520874e15ab5d070058ef642fc57fd9";
+        sha256 = "sha256-/2XTejqj0Bo81HaTrlTSWwInnWwsuqnq+CURXbpIrkA=";
         fetchSubmodules = true;
       })
       else (fetchFromGitHub {