diff --git a/bridge.py b/bridge.py
index 960bd9b..629395e 100644
--- a/bridge.py
+++ b/bridge.py
@@ -107,7 +107,7 @@ def main():
 
     logging.info("Connecting to XMPP server...")
     xmpp.connect()
-    xmpp.process(forever=True)
+    xmpp.loop.run_forever()
 
 if __name__ == '__main__':
     main()
diff --git a/test.nix b/test.nix
new file mode 100644
index 0000000..8ede52f
--- /dev/null
+++ b/test.nix
@@ -0,0 +1,9 @@
+{ pkgs ? import <nixpkgs> {} }:
+let
+  pythonEnv = pkgs.python3.withPackages (ps: with ps; [
+    slixmpp
+  ]);
+in
+pkgs.mkShell {
+  buildInputs = [ pythonEnv ];
+}