diff --git a/pkgs/development/libraries/libdeltachat/default.nix b/pkgs/development/libraries/libdeltachat/default.nix
index 61fe3175681e..a8915e92e58a 100644
--- a/pkgs/development/libraries/libdeltachat/default.nix
+++ b/pkgs/development/libraries/libdeltachat/default.nix
@@ -17,13 +17,13 @@
 
 stdenv.mkDerivation rec {
   pname = "libdeltachat";
-  version = "1.84.0";
+  version = "1.85.0";
 
   src = fetchFromGitHub {
     owner = "deltachat";
     repo = "deltachat-core-rust";
     rev = version;
-    hash = "sha256-ZG3siulXVHTbdSd9tmenljFODZ3LWX+BXn6OJfrbEYA=";
+    hash = "sha256-bgx1j2ESAv9cRe3Iv6nYOS7bUAQcXj3Ta4rAC800Nf8=";
   };
 
   patches = [
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
   cargoDeps = rustPlatform.fetchCargoTarball {
     inherit src;
     name = "${pname}-${version}";
-    hash = "sha256-vQ+A4dEWh5+BgWOdxd7GTPuHk6M6bHgGnZcWNwR/Urs=";
+    hash = "sha256-7ZdN/7CKFuFOIReM7BkMsO/E2lPyDnl4ssPhK5BPLh8=";
   };
 
   nativeBuildInputs = [