diff --git a/msys2-dbadd b/msys2-dbadd
index eed507f..d6fc6cc 100755
--- a/msys2-dbadd
+++ b/msys2-dbadd
@@ -42,18 +42,27 @@ update_packages() {
     local srcpath="${1}"
     shift
 
-    # Skip embedded signatures for everything but msys
-    # https://github.com/msys2/msys2-devtools/issues/5
-    local repo_options=()
-    if [ "${repo}" = "msys" ]; then
-        repo_options=(--include-sigs)
-    fi
-
     local files=( $(find "${staging}/${path}" -name "*.pkg.tar.*" -not -name "*.sig") )
     if [ "${#files[@]}" -gt 0 ]
     then
         echo "==> ${path}"
 
+        # Add embedded signatures for all core/runtime packages and msys2-keyring, so that pacman v5 users have a transition path
+        # https://github.com/msys2/msys2-devtools/issues/5
+        local include_sigs=(
+            "bash" "filesystem" "mintty" "msys2-runtime" "msys2-runtime-devel"
+            "pacman" "pacman-mirrors" "msys2-keyring" "msys2-runtime-3.4"
+            "msys2-runtime-3.3" "msys2-runtime-3.4-devel" "msys2-runtime-3.3-devel")
+        local package_basename="${path##*/}"
+        local package_name="$(echo "${package_basename}" | rev | cut -d"-" -f4- | rev)"
+        local repo_options=()
+        for sig_pkg in "${include_sigs[@]}"; do
+            if [[ "$package_name" == "$sig_pkg" ]]; then
+                repo_options=(--include-sigs)
+                break
+            fi
+        done
+
         cp "${pub}/${path}/${repo}".{db,files}{,.tar.zst}{,.sig} "${staging}/${path}/"
         repo-add "${repo_options[@]}" -n -p -s -v "${staging}/${path}/${repo}.db.tar.zst" "${files[@]}"
         zstd --quiet --test "${staging}/${path}/${repo}.db.tar.zst"