diff --git a/pkgs/development/compilers/llvm/default.nix b/pkgs/development/compilers/llvm/default.nix
index ae23102b90a6..0c04a505e448 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=";
-    "20.1.2".officialRelease.sha256 = "sha256-t30Jh8ckp5qD6XDxtvnSaYiAWbEi6L6hAWh6tN8JjtY=";
+    "20.1.3".officialRelease.sha256 = "sha256-sOl90iRBlD+DGJs72JrP9cJz6XmWs/5PL+uW4nt6LA0=";
     "21.0.0-git".gitRelease = {
       rev = "ebba554a3211b0b98d3ae33ba70f9d6ceaab6ad4";
       rev-version = "21.0.0-unstable-2025-04-13";