diff --git a/pkgs/development/compilers/llvm/default.nix b/pkgs/development/compilers/llvm/default.nix
index 0652049e66ad..3fba989a2f39 100644
--- a/pkgs/development/compilers/llvm/default.nix
+++ b/pkgs/development/compilers/llvm/default.nix
@@ -31,7 +31,7 @@ let
     "17.0.6".officialRelease.sha256 = "sha256-8MEDLLhocshmxoEBRSKlJ/GzJ8nfuzQ8qn0X/vLA+ag=";
     "18.1.8".officialRelease.sha256 = "sha256-iiZKMRo/WxJaBXct9GdAcAT3cz9d9pnAcO1mmR6oPNE=";
     "19.1.7".officialRelease.sha256 = "sha256-cZAB5vZjeTsXt9QHbP5xluWNQnAHByHtHnAhVDV0E6I=";
-    "20.1.6".officialRelease.sha256 = "sha256-PfCzECiCM+k0hHqEUSr1TSpnII5nqIxg+Z8ICjmMj0Y=";
+    "20.1.8".officialRelease.sha256 = "sha256-ysyB/EYxi2qE9fD5x/F2zI4vjn8UDoo1Z9ukiIrjFGw=";
     "21.1.0-rc1".officialRelease.sha256 = "sha256-EZMG3kNqGTvKSuvslbrtNnyqBCG5C2gN9Y2qHbiuh8Q=";
     "22.0.0-git".gitRelease = {
       rev = "90de4a4ac96ef314e3af9c43c516d5aaf105777a";