diff --git a/pkgs/applications/science/biology/delly/default.nix b/pkgs/applications/science/biology/delly/default.nix
index 52e2980980af..b483b3d57bef 100644
--- a/pkgs/applications/science/biology/delly/default.nix
+++ b/pkgs/applications/science/biology/delly/default.nix
@@ -13,13 +13,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "delly";
-  version = "1.1.8";
+  version = "1.2.6";
 
   src = fetchFromGitHub {
     owner = "dellytools";
     repo = "delly";
     rev = "v${finalAttrs.version}";
-    hash = "sha256-IxZPbcM52E1bzy6msGmka6Ykgc+OLWTMhWBCn0E4mFI=";
+    hash = "sha256-OO5nnaIcfNAV8pc03Z8YS5kE96bFOrJXA9QTiLi7vPc=";
   };
 
   buildInputs = [