diff --git a/pkgs/development/tools/analysis/include-what-you-use/default.nix b/pkgs/development/tools/analysis/include-what-you-use/default.nix
index 8aaf257c572b..6b558203663b 100644
--- a/pkgs/development/tools/analysis/include-what-you-use/default.nix
+++ b/pkgs/development/tools/analysis/include-what-you-use/default.nix
@@ -11,11 +11,11 @@ stdenv.mkDerivation rec {
   pname = "include-what-you-use";
   # Make sure to bump `llvmPackages` in "pkgs/top-level/all-packages.nix" to the supported version:
   # https://github.com/include-what-you-use/include-what-you-use?tab=readme-ov-file#clang-compatibility
-  version = "0.25";
+  version = "0.26";
 
   src = fetchurl {
     url = "${meta.homepage}/downloads/${pname}-${version}.src.tar.gz";
-    hash = "sha256-voH51UmIgUYkZQYN3Ci1h8ASVCVccG05fRpJTWnrXv0=";
+    hash = "sha256-UkfAyaWd+dFOiqdAj/7EE0xqSu8S9ZCSkRH7/qyTCgg=";
   };
 
   postPatch = ''
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 993ec65df8a9..ff68d58a5eb7 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -5814,7 +5814,7 @@ with pkgs;
   iaca = iaca_3_0;
 
   include-what-you-use = callPackage ../development/tools/analysis/include-what-you-use {
-    llvmPackages = llvmPackages_21;
+    llvmPackages = llvmPackages_22;
   };
 
   inherit (callPackage ../applications/misc/inochi2d { })