diff --git a/update-github-release.sh b/update-github-release.sh
index f2d0eea..3253269 100755
--- a/update-github-release.sh
+++ b/update-github-release.sh
@@ -2,34 +2,13 @@
 set -e
 
 main(){
-    os='';
-    arch='';
-    case $(uname) in
-        Linux)
-            os='linux';
-            case $(uname -m) in
-                i386 | i686) arch='386' ;;
-                x86_64 | amd64) arch='amd64' ;;
-                armv8 | arm64 | aarch64) arch='arm64' ;;
-                *) echo 'unsupported CPU' && exit 1 ;;
-            esac;
-            ;;
-        *)
-            echo 'unsupported OS' && exit 1 ;;
-    esac;
-    build_arch=$os'_'$arch;
-
     if [ -z "$PROG_PATH" ] || [ -z "$REPO" ]; then
         usage
         exit 1
     fi
     echo "Update for $REPO"
     api_url="https://api.github.com/repos/$REPO/releases/latest"
-    if [ ! -z $MATCH_RELEASE ]; then
-        dl_url=$(curl $SET_PROXY -sSfL $api_url | grep -P $MATCH_RELEASE | grep browser_download_url | cut -d '"' -f 4)
-    else
-        dl_url=$(curl $SET_PROXY -sSfL $api_url | grep -i $build_arch | grep browser_download_url | cut -d '"' -f 4)
-    fi
+    dl_url=$(curl $SET_PROXY -sSfL $api_url | grep -P $MATCH_RELEASE | grep browser_download_url | cut -d '"' -f 4)
     echo "From: $dl_url"
 
     if [ -z $dl_url ]; then