diff --git a/pkgs/development/compilers/lobster/default.nix b/pkgs/development/compilers/lobster/default.nix
index 6bee313e3677..a89a406bc8d6 100644
--- a/pkgs/development/compilers/lobster/default.nix
+++ b/pkgs/development/compilers/lobster/default.nix
@@ -18,13 +18,13 @@
 
 stdenv.mkDerivation rec {
   pname = "lobster";
-  version = "2023.4";
+  version = "2023.5";
 
   src = fetchFromGitHub {
     owner = "aardappel";
     repo = "lobster";
     rev = "v${version}";
-    sha256 = "sha256-/TVVdBDVx+3ySqa4MrRHFadLkvVhOY0+lw/yGy/X9W8=";
+    sha256 = "sha256-3jF5Ab8P8w1WxgsE8d0ByldzL/YVt/fvLVGKOEzBzPI=";
   };
 
   nativeBuildInputs = [ cmake ];