diff --git a/pkgs/by-name/nu/nuclear/package.nix b/pkgs/by-name/nu/nuclear/package.nix
index 201e25b5a6a0..2fb5812e85cb 100644
--- a/pkgs/by-name/nu/nuclear/package.nix
+++ b/pkgs/by-name/nu/nuclear/package.nix
@@ -5,7 +5,7 @@
 }:
 let
   pname = "nuclear";
-  version = "0.6.39";
+  version = "0.6.40";
 
   src = fetchurl {
     # Nuclear currenntly only publishes AppImage releases for x86_64, which is hardcoded in
@@ -13,7 +13,7 @@ let
     # provide more arches, we should use stdenv.hostPlatform to determine the arch and choose
     # source URL accordingly.
     url = "https://github.com/nukeop/nuclear/releases/download/v${version}/${pname}-v${version}-x86_64.AppImage";
-    hash = "sha256-X5IQ9NlFTFTEYDhuCyrzkPGmvNK66nCSdbmJZxObkBo=";
+    hash = "sha256-OzTT4f+cdMzmSwdTHk8LXGg3AQcWw1ItIBbrfp16qAw=";
   };
 
   appimageContents = appimageTools.extract { inherit pname version src; };