diff --git a/pkgs/by-name/su/sumo/package.nix b/pkgs/by-name/su/sumo/package.nix
index 07b36b793bb5..5fd4e9147f24 100644
--- a/pkgs/by-name/su/sumo/package.nix
+++ b/pkgs/by-name/su/sumo/package.nix
@@ -37,13 +37,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "sumo";
-  version = "1.25.0";
+  version = "1.26.0";
 
   src = fetchFromGitHub {
     owner = "eclipse-sumo";
     repo = "sumo";
     tag = "v${lib.replaceStrings [ "." ] [ "_" ] finalAttrs.version}";
-    hash = "sha256-rUa5DpoBfnviSEmzPEiVnZU0KGavAIOFoysQ74uTll0=";
+    hash = "sha256-HMuUQeme/cmJFR71bxsgr1tqtewl3vmsclGhc6ygiyk=";
     fetchSubmodules = true;
   };