diff --git a/nix/sources.json b/nix/sources.json
index e86fd2d132..2b3faed749 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -28,7 +28,7 @@
     "common": {
         "ref": "master",
         "repo": "ssh://git@github.com/dfinity-lab/common",
-        "rev": "b0fb6fd07826e20ec0d484c7de8d94846ff4b45d",
+        "rev": "56aa335086f3b74156fb680e52affd34cca8c667",
         "type": "git"
     },
     "dfinity": {