diff --git a/.github/workflows/publish_pypi.yml b/.github/workflows/publish_pypi.yml
index fcf6f3b..1cc336a 100644
--- a/.github/workflows/publish_pypi.yml
+++ b/.github/workflows/publish_pypi.yml
@@ -48,7 +48,8 @@ jobs:
           sudo apt update
           sudo apt install -y build-essential cmake
           NEWEST=""
-          for v in $(apt-cache search '^clang-[0-9]+$' | awk '{print $2}' | sort -rn); do
+          for name in $(apt-cache search '^clang-[0-9]+$' | awk '{print $1}' | sort -rV); do
+            v=${name#clang-}
             if sudo apt-get install --dry-run -y "clang-$v" "llvm-$v" "lld-$v" "libclang-$v-dev" >/dev/null 2>&1; then
               NEWEST=$v
               break