diff --git a/cabal-testsuite/src/Test/Cabal/Prelude.hs b/cabal-testsuite/src/Test/Cabal/Prelude.hs
index d7b73cd9a05..6db2654c2da 100644
--- a/cabal-testsuite/src/Test/Cabal/Prelude.hs
+++ b/cabal-testsuite/src/Test/Cabal/Prelude.hs
@@ -631,7 +631,7 @@ withRemoteRepo repoDir m = do
         putStrLn =<< readFile (testUserCabalConfigFile env)
 
         withAsync
-          (runReaderT (python3 ["-m", "http.server", "-d", workDir]) env)
+          (runReaderT (python3 ["-m", "http.server", "-d", workDir, "--bind", "localhost", "8000"]) env)
           (\_ -> do
             -- wait for the python webserver to come up with a exponential
             -- backoff starting from 50ms, up to a maximum wait of 60s