diff --git a/packages/nextcloud-mcp-server/package.nix b/packages/nextcloud-mcp-server/package.nix
index 91c9645..1199a71 100644
--- a/packages/nextcloud-mcp-server/package.nix
+++ b/packages/nextcloud-mcp-server/package.nix
@@ -118,7 +118,7 @@ let
     meta = with lib; { description = "LangChain text splitters"; homepage = "https://github.com/langchain-ai/langchain"; license = licenses.mit; };
   };
   mistralai = fetchWheel {
-    pname = "mistralai"; version = "2.4.7"; hash = lib.fakeHash;
+    pname = "mistralai"; version = "2.4.7"; hash = "sha256-FjnL0tjxjHIqfm2Fl4PCAdUkC668MUkdJxWza8o9gK8=";
     propagatedBuildInputs = with python3Packages; [ httpx pydantic python-dateutil ];
     meta = with lib; { description = "Mistral AI API client"; homepage = "https://github.com/mistralai/client-python"; license = licenses.asl20; };
   };