diff --git a/pkgs/development/ocaml-modules/dtools/default.nix b/pkgs/development/ocaml-modules/dtools/default.nix
index 0eaba9fa158d..c534bdaad92a 100644
--- a/pkgs/development/ocaml-modules/dtools/default.nix
+++ b/pkgs/development/ocaml-modules/dtools/default.nix
@@ -2,7 +2,7 @@
 
 buildDunePackage rec {
   pname = "dtools";
-  version = "0.4.4";
+  version = "0.4.5";
 
   minimalOCamlVersion = "4.05";
 
@@ -10,7 +10,7 @@ buildDunePackage rec {
     owner = "savonet";
     repo = "ocaml-dtools";
     rev = "v${version}";
-    sha256 = "1xbgnij63crikfr2jvar6sf6c7if47qarg5yycdfidip21vhmawf";
+    sha256 = "sha256-NLQkQx3ZgxU1zvaQjOi+38nSeX+zKCXW40zOxVNekZA=";
   };
 
   meta = with lib; {