diff --git a/pkgs/development/python-modules/wasmer/default.nix b/pkgs/development/python-modules/wasmer/default.nix
index 3444f541282e..0fbd9d2f8d7d 100644
--- a/pkgs/development/python-modules/wasmer/default.nix
+++ b/pkgs/development/python-modules/wasmer/default.nix
@@ -41,6 +41,12 @@ let
       nativeBuildInputs = (with rustPlatform; [ cargoSetupHook maturinBuildHook ])
         ++ extraNativeBuildInputs;
 
+      postPatch = ''
+        # Workaround for metadata, that maturin 0.14 does not accept in Cargo.toml anymore
+        substituteInPlace ${buildAndTestSubdir}/Cargo.toml \
+          --replace "package.metadata.maturin" "broken"
+      '';
+
       buildInputs = lib.optionals stdenv.isDarwin [ libiconv ]
         ++ extraBuildInputs;