diff --git a/nixos/tests/mollysocket.nix b/nixos/tests/mollysocket.nix
index 8cbd0c0272e0..5135d79fcba9 100644
--- a/nixos/tests/mollysocket.nix
+++ b/nixos/tests/mollysocket.nix
@@ -16,12 +16,10 @@ in {
   };
 
   testScript = ''
-    import json
-
     mollysocket.wait_for_unit("mollysocket.service")
     mollysocket.wait_for_open_port(${toString port})
 
     out = mollysocket.succeed("curl --fail http://127.0.0.1:${toString port}")
-    assert json.loads(out)["mollysocket"]["version"] == "${toString pkgs.mollysocket.version}"
+    assert "Version ${pkgs.mollysocket.version}" in out
   '';
 })
diff --git a/pkgs/by-name/mo/mollysocket/package.nix b/pkgs/by-name/mo/mollysocket/package.nix
index 6c9e18cc8f15..c282bbba2630 100644
--- a/pkgs/by-name/mo/mollysocket/package.nix
+++ b/pkgs/by-name/mo/mollysocket/package.nix
@@ -11,16 +11,16 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "mollysocket";
-  version = "1.4.1";
+  version = "1.5.1";
 
   src = fetchFromGitHub {
     owner = "mollyim";
     repo = "mollysocket";
     rev = version;
-    hash = "sha256-vE5J4BKYmVqtowfxDDTOwFKws7phYRm9xKFPiDNuNn4=";
+    hash = "sha256-RRnMmdyr4FZHsdLjGvTRiSw+YC+OutWqsoEId7ZlSX0=";
   };
 
-  cargoHash = "sha256-s/EhX5o6XuUqcrqhXY274MyWhRukgetfIZKQ4XNlq6Y=";
+  cargoHash = "sha256-BXllzuw01ANrk+osUsAlMyLRAptvxGO+rl0ygsCfewU=";
 
   nativeBuildInputs = [
     pkg-config