diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e905a77da..07a22cc47 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -9,7 +9,7 @@ on:
 jobs:
   buidMacOS:
     name: buidMacOS
-    runs-on: macos-12
+    runs-on: macos-11
     steps:
       - uses: actions/checkout@main
       - name: Build
@@ -19,7 +19,7 @@ jobs:
 
   buidIOS:
     name: buidIOS
-    runs-on: macos-12
+    runs-on: macos-11
     steps:
       - uses: actions/checkout@main
       - name: Build
@@ -27,7 +27,7 @@ jobs:
 
   buidTVOS:
     name: buidTVOS
-    runs-on: macos-12
+    runs-on: macos-11
     steps:
       - uses: actions/checkout@main
       - name: Build
diff --git a/.github/workflows/create-release.yml b/.github/workflows/create-release.yml
index 10cebe427..a494f821a 100644
--- a/.github/workflows/create-release.yml
+++ b/.github/workflows/create-release.yml
@@ -12,14 +12,14 @@ on:
 jobs:
   create_release:
     name: Create Release
-    runs-on: macos-12
+    runs-on: macos-11
     steps:
       - uses: actions/checkout@main
       - name: Build
         run: swift build -v -c release
       - name: Test
         run: swift test -v
-      - uses: actions/upload-artifact@v2
+      - uses: actions/upload-artifact@main
         with:
             name: KSPlayer
             path: Sources
diff --git a/Package.swift b/Package.swift
index 89e2985b9..5f350abd2 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,4 +1,4 @@
-// swift-tools-version:5.6
+// swift-tools-version:5.5
 import PackageDescription
 
 let package = Package(