diff --git a/pkgs/applications/version-management/git-and-tools/delta/default.nix b/pkgs/applications/version-management/git-and-tools/delta/default.nix
index 2d103f627454..a8928433c349 100644
--- a/pkgs/applications/version-management/git-and-tools/delta/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/delta/default.nix
@@ -9,16 +9,16 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "delta";
-  version = "0.3.0";
+  version = "0.4.0";
 
   src = fetchFromGitHub {
     owner = "dandavison";
     repo = pname;
     rev = version;
-    sha256 = "0y3gkan5v0d6637yf5p5a9dklyv5zngw7a8pyqzj4ixys72ixg20";
+    sha256 = "1i4ddz2fivn5h35059b68z3lfw48psak79aab6pk7d8iamz4njb9";
   };
 
-  cargoSha256 = "15sh2lsc16nf9w7sp3avy77f4vyj0rdsm6m1bn60y8gmv2r16v6i";
+  cargoSha256 = "1na6wqjm69diwhkyxlzk0jm3qwkdrah3w6i8p7dhzrsx434lhmya";
 
   nativeBuildInputs = [ installShellFiles ];