diff --git a/pkgs/development/compilers/clasp/default.nix b/pkgs/development/compilers/clasp/default.nix
index cae4fa08e4e7..3879d0e7360a 100644
--- a/pkgs/development/compilers/clasp/default.nix
+++ b/pkgs/development/compilers/clasp/default.nix
@@ -1,6 +1,6 @@
 {
   lib,
-  llvmPackages_15,
+  llvmPackages_18,
   fetchzip,
   sbcl,
   pkg-config,
@@ -13,16 +13,16 @@
 }:
 
 let
-  inherit (llvmPackages_15) stdenv llvm libclang;
+  inherit (llvmPackages_18) stdenv llvm libclang;
 in
 
 stdenv.mkDerivation rec {
   pname = "clasp";
-  version = "2.6.0";
+  version = "2.7.0";
 
   src = fetchzip {
     url = "https://github.com/clasp-developers/clasp/releases/download/${version}/clasp-${version}.tar.gz";
-    hash = "sha256-SiQ4RMha6dMV7V2fh+UxtAIgEEH/6/hF9fe+bPtoGIw=";
+    hash = "sha256-IoEwsMvY/bbb6K6git+7zRGP0DIJDROt69FBQuzApRk=";
   };
 
   patches = [
@@ -64,7 +64,14 @@ stdenv.mkDerivation rec {
       --package-path=/ \
       --bin-path=$out/bin \
       --lib-path=$out/lib \
-      --share-path=$out/share
+      --dylib-path=$out/lib \
+      --share-path=$out/share \
+      --pkgconfig-path=$out/lib/pkgconfig
+  '';
+
+  postInstall = ''
+    # --dylib-path not honored. Fix it in post.
+    mv $out/libclasp* $out/lib/
   '';
 
   meta = {