diff --git a/pkgs/nim-packages/groupchat.nix b/pkgs/nim-packages/groupchat.nix
index 86ef167..b8d32b7 100644
--- a/pkgs/nim-packages/groupchat.nix
+++ b/pkgs/nim-packages/groupchat.nix
@@ -19,8 +19,8 @@ buildNimblePackage rec {
 
   src = fetchgit {
     url =  https://git.gnunet.org/groupchat.git;
-    rev = "fc6a6896e4e497d973a8905b563883e9db6909b9";
-    sha256 = "109356yz0fb322asjr71nikva8cqc5wb295nfp25693r6a4j4r02";
+    rev = "8d15b0abcc8fcb8130776d8c0cf447d621b7e09a";
+    sha256 = "15acjpd35xhshv06v1prly5qr3kyapwi048h9wrzqryjsz5n6qk1";
   };
 
   nimDeps = [ gnunet_nim ];