diff --git a/tests/lib/config.nix b/tests/lib/config.nix
index 09ae517..fe66875 100644
--- a/tests/lib/config.nix
+++ b/tests/lib/config.nix
@@ -1,7 +1,4 @@
 {
   # Testing eval failures that result from stateVersion assertion is out of scope
   mailserver.stateVersion = 999;
-
-  # minimum size required by dovecot
-  security.dhparams.defaultBitSize = 2048;
 }