diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 250a2f481fcf..107ab2b98a9b 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -1653,7 +1653,9 @@ let
 
         paf = callPackage ../development/ocaml-modules/paf { };
 
-        paf-cohttp = callPackage ../development/ocaml-modules/paf/cohttp.nix { };
+        paf-cohttp = callPackage ../development/ocaml-modules/paf/cohttp.nix {
+          cohttp-lwt = cohttp-lwt_5_3;
+        };
 
         parany = callPackage ../development/ocaml-modules/parany { };