diff --git a/pkgs/by-name/li/libdeltachat/package.nix b/pkgs/by-name/li/libdeltachat/package.nix
index 70a5fde765ef..6f36fad0241c 100644
--- a/pkgs/by-name/li/libdeltachat/package.nix
+++ b/pkgs/by-name/li/libdeltachat/package.nix
@@ -20,13 +20,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "libdeltachat";
-  version = "2.55.0";
+  version = "2.56.0";
 
   src = fetchFromGitHub {
     owner = "chatmail";
     repo = "core";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-Iy0VeWfD0GXdQiGZbn95p9SJ4MUSYBwsYLnI5NvgUl4=";
+    hash = "sha256-qdkCv3MooW2tieg6ivJHjh7uTVzWcwDM3aV5u2rIqOw=";
   };
 
   patches = [
@@ -36,7 +36,7 @@ stdenv.mkDerivation (finalAttrs: {
   cargoDeps = rustPlatform.fetchCargoVendor {
     pname = "chatmail-core";
     inherit (finalAttrs) version src;
-    hash = "sha256-BfvLWldH4gbnB/ehywB40Ho1IZB/Kv5szmtMTVRsvqk=";
+    hash = "sha256-tETJAlwRmKgC1BRFtqQe2PNqpsGKaYeAfKA4kFog5+8=";
   };
 
   nativeBuildInputs = [