diff --git a/pkgs/by-name/de/deltachat-desktop/package.nix b/pkgs/by-name/de/deltachat-desktop/package.nix
index a96af4553dd4..ea855cf6aabe 100644
--- a/pkgs/by-name/de/deltachat-desktop/package.nix
+++ b/pkgs/by-name/de/deltachat-desktop/package.nix
@@ -24,12 +24,12 @@ let
       owner = "chatmail";
       repo = "core";
       tag = "v${version}";
-      hash = "sha256-ULOnR1YvNmKr7iEuf8cZ+WgN4JRIG3md9gwyXK81vPQ=";
+      hash = "sha256-pW1+9aljtnYJmlJOj+m0aQekYO5IsL0fduR7kIAPdN8=";
     };
     cargoDeps = rustPlatform.fetchCargoVendor {
       pname = "chatmail-core";
       inherit version src;
-      hash = "sha256-EkYlG32EhtIFFDpVgbKw8TSqHhPHgxd6Kh3wYN4Moq8=";
+      hash = "sha256-iIC9wE7P2SKeCMtc/hFTRaOGXD2F7kh1TptOoes/Qi0=";
     };
   };
   electron = electron_37;
diff --git a/pkgs/by-name/de/deltachat-rpc-server/package.nix b/pkgs/by-name/de/deltachat-rpc-server/package.nix
index 4a0f148ff442..1f4d65648074 100644
--- a/pkgs/by-name/de/deltachat-rpc-server/package.nix
+++ b/pkgs/by-name/de/deltachat-rpc-server/package.nix
@@ -2,6 +2,7 @@
   rustPlatform,
   libdeltachat,
   pkg-config,
+  versionCheckHook,
 }:
 
 rustPlatform.buildRustPackage {
@@ -29,6 +30,12 @@ rustPlatform.buildRustPackage {
 
   doCheck = false;
 
+  doInstallCheck = true;
+
+  nativeInstallCheckInputs = [
+    versionCheckHook
+  ];
+
   meta = libdeltachat.meta // {
     description = "Delta Chat RPC server exposing JSON-RPC core API over standard I/O";
     mainProgram = "deltachat-rpc-server";