diff --git a/.github/workflows/update_meta_core.yaml b/.github/workflows/update_meta_core.yaml
index 4393753d..c48c8009 100644
--- a/.github/workflows/update_meta_core.yaml
+++ b/.github/workflows/update_meta_core.yaml
@@ -119,22 +119,6 @@ jobs:
         uses: actions/setup-go@v6
         with:
           go-version: ${{needs.go.outputs.version}}
-          
-      - name: Set variables
-        run: |
-            VERSION="${GITHUB_REF_NAME,,}-$(git rev-parse --short HEAD)"
-            VERSION="${VERSION//\//-}"
-            PackageVersion="$(curl -s "https://api.github.com/repos/MetaCubeX/mihomo/releases/latest" | jq -r '.tag_name' | sed 's/v//g' | awk -F '.' '{$NF = $NF + 1; print}' OFS='.').${VERSION/-/.}"
-            if [ -n "${{ github.event.inputs.version }}" ]; then
-              VERSION=${{ github.event.inputs.version }}
-              PackageVersion="${VERSION#v}"
-            fi
-            echo "VERSION=${VERSION}" >> $GITHUB_ENV
-            echo "PackageVersion=${PackageVersion}" >> $GITHUB_ENV
-            echo "BUILDTIME=$(date)" >> $GITHUB_ENV
-            echo "CGO_ENABLED=0" >> $GITHUB_ENV
-            echo "BUILDTAG=-extldflags --static" >> $GITHUB_ENV
-            echo "GOTOOLCHAIN=local" >> $GITHUB_ENV    
         
       - name: Update CA
         run: |
@@ -145,8 +129,8 @@ jobs:
       - name: build core
         id: build
         run: |
-            go env
-            go build -v -tags "${TAGS}" -o meta -trimpath -ldflags "${BUILDTAG} -X 'github.com/metacubex/mihomo/constant.Version=${VERSION}' -X 'github.com/metacubex/mihomo/constant.BuildTime=${BUILDTIME}' -w -s -buildid="
+            go build -v -tags "${TAGS}" -o meta -trimpath -ldflags "-extldflags --static -X 'github.com/metacubex/mihomo/constant.Version=${VERSION}' -X 'github.com/metacubex/mihomo/constant.BuildTime=$(date)' -w -s -buildid="
+      
       - name: Upload file to workspace
         uses: actions/upload-artifact@v4
         with:
diff --git a/.github/workflows/update_singbox_core.yaml b/.github/workflows/update_singbox_core.yaml
index 2e963a30..922a3c10 100644
--- a/.github/workflows/update_singbox_core.yaml
+++ b/.github/workflows/update_singbox_core.yaml
@@ -117,11 +117,11 @@ jobs:
             goos: linux
             goarch: mips
             gomips: softfloat
-          - name: linux-mipsel-softfloat
+          - name: linux-mipsle-softfloat
             goos: linux
             goarch: mipsle
             gomips: softfloat
-          - name: linux-mipsel-hardfloat
+          - name: linux-mipsle-hardfloat
             goos: linux
             goarch: mipsle
             gomips: hardfloat   
@@ -195,17 +195,36 @@ jobs:
         with:
           path: ./tmp
           
+      - name: Zip core by upx
+        if: endsWith(env.PUSHDIR, '_upx')
+        run: |    
+          wget https://github.com/upx/upx/releases/download/v3.96/upx-3.96-amd64_linux.tar.xz
+          wget https://github.com/upx/upx/releases/download/v3.94/upx-3.94-amd64_linux.tar.xz
+          tar xf upx-3.96-amd64_linux.tar.xz
+          tar xf upx-3.94-amd64_linux.tar.xz
+          for arch in amd64 armv5 armv7 arm64 386 mips-softfloat mipsle-hardfloat mipsle-softfloat;do
+            [ ! -f ./tmp/linux-${arch}/sing-box ] && continue
+            mv -f ./tmp/linux-${arch}/sing-box ./tmp/singbox-linux-${arch}.upx
+            chmod +x ./tmp/singbox-linux-${arch}.upx
+            case "${arch}" in
+              armv5|mips* )
+                ./upx-3.94-amd64_linux/upx -9 --no-lzma ./tmp/singbox-linux-${arch}.upx
+              ;;
+              *)
+                ./upx-3.96-amd64_linux/upx --no-lzma ./tmp/singbox-linux-${arch}.upx
+              ;;
+            esac
+          done
+         
       - name: Zip core by tar
-        run: |      
-          for arch in amd64 armv5 armv7 arm64 386 mips-softfloat mipsel-hardfloat mipsel-softfloat;do
+        if: ${{ !endsWith(env.PUSHDIR, '_upx') }}
+        run: |        
+          for arch in amd64 armv5 armv7 arm64 386 mips-softfloat mipsle-hardfloat mipsle-softfloat;do
             [ ! -f ./tmp/linux-${arch}/sing-box ] && continue
             mv -f ./tmp/linux-${arch}/sing-box ./tmp/CrashCore
             chmod +x ./tmp/CrashCore
             tar --no-same-owner -zcvf ./tmp/singbox-linux-${arch}.tar.gz -C ./tmp CrashCore
           done
-          mv -f ./tmp/singbox-linux-mipsel-hardfloat.tar.gz ./tmp/singbox-linux-mipsle-hardfloat.tar.gz
-          mv -f ./tmp/singbox-linux-mipsel-softfloat.tar.gz ./tmp/singbox-linux-mipsle-softfloat.tar.gz
-          echo ${VERSION} > ./tmp/version
 
       - name: Commit and push
         if: ${{ env.PUSHDIR != '' }}