diff --git a/pkgs/development/coq-modules/http/default.nix b/pkgs/development/coq-modules/http/default.nix
index 9d35d8c6ca84..ff0afb0cd7b4 100644
--- a/pkgs/development/coq-modules/http/default.nix
+++ b/pkgs/development/coq-modules/http/default.nix
@@ -22,7 +22,7 @@ mkCoqDerivation {
       (case (range "8.14" "8.19") "0.2.1")
     ] null;
   release = {
-    "0.2.1".sha256 = "sha256-CIcaXEojNdajXNoMBjGlQRc1sOJSKgUlditNxbNSPgk=";
+    "0.2.1".hash = "sha256-CIcaXEojNdajXNoMBjGlQRc1sOJSKgUlditNxbNSPgk=";
   };
   releaseRev = v: "v${v}";