diff --git a/http-proxy.cabal b/http-proxy.cabal
index d0ae76a..4be4d98 100644
--- a/http-proxy.cabal
+++ b/http-proxy.cabal
@@ -58,7 +58,7 @@ library
                       , transformers            == 0.6.*
                       , wai                     == 3.2.*
                       , wai-conduit             == 3.0.*
-                      , warp                    == 3.4.*
+                      , warp                    == 3.3.*
                       , warp-tls                == 3.4.*