diff --git a/action.yml b/action.yml
index 7493960..4a5516d 100644
--- a/action.yml
+++ b/action.yml
@@ -10,6 +10,10 @@ inputs:
     description: "mark version."
     required: false
     default: "latest"
+  url_prefix:
+    description: "mark url."
+    required: false
+    default: "https://github.com/kovetskiy/mark"
 runs:
   using: "composite"
   steps:
diff --git a/src/install-mark.sh b/src/install-mark.sh
index 9f2d929..67f7c6f 100755
--- a/src/install-mark.sh
+++ b/src/install-mark.sh
@@ -2,6 +2,7 @@
 
 main() {
   mark_version="${1}"
+  url_prefix="${2}"
 
   # shellcheck disable=SC2039
   if command -v mark >/dev/null 2>&1; then
@@ -10,7 +11,7 @@ main() {
     exit 0
   fi
 
-  url_prefix="https://github.com/kovetskiy/mark/releases"
+  url_prefix="${url_prefix}/releases"
   if [ "${mark_version}" = "latest" ]; then
     url_prefix="${url_prefix}/latest/download"
   else