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 3eae91e939d3..68e9927522b5 100644
--- a/pkgs/development/tools/analysis/include-what-you-use/default.nix
+++ b/pkgs/development/tools/analysis/include-what-you-use/default.nix
@@ -3,11 +3,11 @@
 stdenv.mkDerivation rec {
   pname = "include-what-you-use";
   # Also bump llvmPackages in all-packages.nix to the supported version!
-  version = "0.18";
+  version = "0.19";
 
   src = fetchurl {
-    sha256 = "sha256-kQL8hBkpR1ffhqic5uwwX42QqBjR8lmKE50V6xiUuPM=";
     url = "${meta.homepage}/downloads/${pname}-${version}.src.tar.gz";
+    hash = "sha256-KxAVe2DqCK3AjjiWtJIcc/yt1exOtlKymjQSnVAeXuA=";
   };
 
   postPatch = ''
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index ee67e6575441..461816faba96 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -17892,7 +17892,7 @@ with pkgs;
   img = callPackage ../development/tools/img { };
 
   include-what-you-use = callPackage ../development/tools/analysis/include-what-you-use {
-    llvmPackages = llvmPackages_14;
+    llvmPackages = llvmPackages_15;
   };
 
   indent = callPackage ../development/tools/misc/indent { };