diff --git a/pkgs/applications/networking/instant-messengers/deltachat-desktop/default.nix b/pkgs/applications/networking/instant-messengers/deltachat-desktop/default.nix
index c3117c80a8aea..a946ab60e4db5 100644
--- a/pkgs/applications/networking/instant-messengers/deltachat-desktop/default.nix
+++ b/pkgs/applications/networking/instant-messengers/deltachat-desktop/default.nix
@@ -5,6 +5,7 @@
 , buildGoModule
 , esbuild
 , fetchFromGitHub
+, jq
 , libdeltachat
 , makeDesktopItem
 , makeWrapper
@@ -35,18 +36,26 @@ let
 in
 buildNpmPackage rec {
   pname = "deltachat-desktop";
-  version = "1.41.4";
+  version = "1.42.1";
 
   src = fetchFromGitHub {
     owner = "deltachat";
     repo = "deltachat-desktop";
     rev = "v${version}";
-    hash = "sha256-T2EPCYQ2N414sUEqpXtx459sZZXOnHgXM0/dz3Wi9hw=";
+    hash = "sha256-Ua4HN02203l2FgeMotqLjcRSEHFP/4OTrl8sPS/0C+k=";
   };
 
-  npmDepsHash = "sha256-q60qrTN6H1AfJGhula8dzRwnKw2l+X0BOIvnKZh5t2s=";
+  npmDepsHash = "sha256-c9ZwShmHIoFJ2mAabKyYkYsCMXqxUf+tAS1a1/7s0qo=";
+
+  postPatch = ''
+    test \
+      $(jq -r '.packages."node_modules/@deltachat/jsonrpc-client".version' package-lock.json) \
+      = $(pkg-config --modversion deltachat) \
+      || (echo "error: libdeltachat version does not match jsonrpc-client" && exit 1)
+  '';
 
   nativeBuildInputs = [
+    jq
     makeWrapper
     pkg-config
     python3
diff --git a/pkgs/development/libraries/libdeltachat/Cargo.lock b/pkgs/development/libraries/libdeltachat/Cargo.lock
index 45ed5539d5def..966dcb72535e1 100644
--- a/pkgs/development/libraries/libdeltachat/Cargo.lock
+++ b/pkgs/development/libraries/libdeltachat/Cargo.lock
@@ -1087,7 +1087,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat"
-version = "1.131.6"
+version = "1.131.7"
 dependencies = [
  "ansi_term",
  "anyhow",
@@ -1165,7 +1165,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat-jsonrpc"
-version = "1.131.6"
+version = "1.131.7"
 dependencies = [
  "anyhow",
  "async-channel 2.1.0",
@@ -1189,7 +1189,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat-repl"
-version = "1.131.6"
+version = "1.131.7"
 dependencies = [
  "ansi_term",
  "anyhow",
@@ -1204,7 +1204,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat-rpc-server"
-version = "1.131.6"
+version = "1.131.7"
 dependencies = [
  "anyhow",
  "deltachat",
@@ -1229,7 +1229,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat_ffi"
-version = "1.131.6"
+version = "1.131.7"
 dependencies = [
  "anyhow",
  "deltachat",
diff --git a/pkgs/development/libraries/libdeltachat/default.nix b/pkgs/development/libraries/libdeltachat/default.nix
index 8a762f6f6bd79..11e34045c36f1 100644
--- a/pkgs/development/libraries/libdeltachat/default.nix
+++ b/pkgs/development/libraries/libdeltachat/default.nix
@@ -3,6 +3,7 @@
 , fetchFromGitHub
 , cargo
 , cmake
+, deltachat-desktop
 , deltachat-repl
 , openssl
 , perl
@@ -30,13 +31,13 @@ let
   };
 in stdenv.mkDerivation rec {
   pname = "libdeltachat";
-  version = "1.131.6";
+  version = "1.131.7";
 
   src = fetchFromGitHub {
     owner = "deltachat";
     repo = "deltachat-core-rust";
     rev = "v${version}";
-    hash = "sha256-/LWWqa8f+ODP4LDIx9U9kRCFYI+5N6KztFDPbc2TiF0=";
+    hash = "sha256-QzNZBBQ0fFqQByaNRNebtnoljC4rQqVTxbNz2M3LDAc=";
   };
 
   patches = [
@@ -81,7 +82,7 @@ in stdenv.mkDerivation rec {
   passthru = {
     inherit cargoLock;
     tests = {
-      inherit deltachat-repl;
+      inherit deltachat-desktop deltachat-repl;
       python = python3.pkgs.deltachat;
     };
   };