diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 5f4f754cbf72..0ed3393185a3 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -14488,7 +14488,7 @@ with pkgs;
   crystal2nix = callPackage ../development/compilers/crystal2nix { };
 
   crystalline = callPackage ../development/tools/language-servers/crystalline {
-    llvmPackages = llvmPackages_15;
+    llvmPackages = llvmPackages_18;
   };
 
   icr = callPackage ../development/tools/icr { };