diff --git a/templates/compiler-dev/flake.lock b/templates/compiler-dev/flake.lock
index dfa7dc4..1c5a2c8 100644
--- a/templates/compiler-dev/flake.lock
+++ b/templates/compiler-dev/flake.lock
@@ -36,11 +36,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1713805509,
-        "narHash": "sha256-YgSEan4CcrjivCNO5ZNzhg7/8ViLkZ4CB/GrGBVSudo=",
+        "lastModified": 1715161350,
+        "narHash": "sha256-5ZU8DVwHO0gjw2sKoKkToYOXMJFRBpRsa17Ebm8fgj0=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "1e1dc66fe68972a76679644a5577828b6a7e8be4",
+        "rev": "c4200cb341ee794775185ecd4105fbbfb5ca73a0",
         "type": "github"
       },
       "original": {
diff --git a/templates/compiler-dev/flake.nix b/templates/compiler-dev/flake.nix
index 64fab5f..3d25004 100644
--- a/templates/compiler-dev/flake.nix
+++ b/templates/compiler-dev/flake.nix
@@ -33,7 +33,7 @@
               wasmtime
               zlib
             ]
-            ++ (with llvmPackages_17; [
+            ++ (with llvmPackages_18; [
               clang
               clang-unwrapped
               lld