diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
new file mode 100644
index 00000000..c2a936d0
--- /dev/null
+++ b/.github/workflows/main.yml
@@ -0,0 +1,33 @@
+  
+# This is a basic workflow to help you get started with Actions
+
+name: CI
+
+# Controls when the action will run. Triggers the workflow on push or pull request
+# events but only for the master branch
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # This workflow contains a single job called "build"
+  build:
+    # The type of runner that the job will run on
+    runs-on: windows-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v2
+
+      - name: build
+        run: githubci\build.bat
+      
+      - name: Upload a Build Artifact
+        uses: actions/upload-artifact@v2.2.0
+        with:
+          name: obs-multi-rtmp
+          path: dist
diff --git a/appveyor.yml b/appveyor.yml
index 263765a2..ef75a5e7 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,25 +1,12 @@
 environment:
   matrix:
   - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
-    OBS_VER: "25.0.8"
+    OBS_VER: "26.1.2"
 
   - APPVEYOR_BUILD_WORKER_IMAGE: macos
   - APPVEYOR_BUILD_WORKER_IMAGE: Ubuntu2004
 
 for:
-- matrix:
-    only:
-    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
-
-  install:
-  - pwsh: ci/install.ps1 -OBS_VER "$Env:OBS_VER"
-
-  build_script:
-  - pwsh: ./build.ps1 -OBS_BIN_DIR32 "../OBS-Studio-${Env:OBS_VER}-Full-x86" -OBS_BIN_DIR64 "../OBS-Studio-${Env:OBS_VER}-Full-x64" -OBS_SRC_DIR "../obs-studio-${Env:OBS_VER}"
-
-  artifacts:
-  - path: "*.zip"
-
 - matrix:
     only:
     - APPVEYOR_BUILD_WORKER_IMAGE: macos
diff --git a/build.ps1 b/build.ps1
deleted file mode 100644
index a8ec1f40..00000000
--- a/build.ps1
+++ /dev/null
@@ -1,31 +0,0 @@
-param(
-    [string]$OBS_BIN_DIR32 = "../OBS-Studio-25.0.8-Full-x86",
-    [string]$OBS_BIN_DIR64 = "../OBS-Studio-25.0.8-Full-x64",
-    [string]$OBS_SRC_DIR = "../obs-studio-25.0.8",
-    [string]$QTROOT = "C:/QtDep"
-)
-
-$ErrorActionPreference = "Stop"
-Set-PSDebug -Trace 1
-
-# find qt directory
-$QTDIR32 = [System.IO.Directory]::GetDirectories("c:/QtDep/", "msvc2017", 1)[0].Replace("\", "/")
-$QTDIR64 = [System.IO.Directory]::GetDirectories("c:/QtDep/", "msvc2017_64", 1)[0].Replace("\", "/")
-
-$ver = (Select-String -Pattern "obs-multi-rtmp VERSION" -Path CMakeLists.txt -Raw)
-$ver = $ver.Split(" ")[2]
-$ver = $ver.Remove($ver.Length - 1)
-
-Remove-Item -Path build_x86, build_x64, dist, *.zip -Recurse -ErrorAction Ignore
-
-cmake -DQTDIR="$QTDIR32" -DOBS_BIN_DIR="$OBS_BIN_DIR32" -DOBS_SRC_DIR="$OBS_SRC_DIR" -G "Visual Studio 16 2019" -A Win32 -B build_x86 -DCMAKE_INSTALL_PREFIX=dist .
-cmake --build build_x86 --config Release
-cmake --install build_x86 --config Release
-
-cmake -DQTDIR="$QTDIR64" -DOBS_BIN_DIR="$OBS_BIN_DIR64" -DOBS_SRC_DIR="$OBS_SRC_DIR" -G "Visual Studio 16 2019" -A x64 -B build_x64 -DCMAKE_INSTALL_PREFIX=dist .
-cmake --build build_x64 --config Release
-cmake --install build_x64 --config Release
-
-cd dist
-cmake -E tar cf "../obs-multi-rtmp_Windows_$ver.zip" --format=zip .
-cd ..
diff --git a/ci/install.ps1 b/ci/install.ps1
deleted file mode 100644
index 9cfdd0f4..00000000
--- a/ci/install.ps1
+++ /dev/null
@@ -1,37 +0,0 @@
-param(
-    [string]$OBS_VER = "25.0.8",
-    [string]$OBS_BIN_URL = "https://github.com/obsproject/obs-studio/releases/download/#OBS_VER#/OBS-Studio-#OBS_VER#-Full-#ARCH#.zip",
-    [string]$OBS_SRC_URL = "https://github.com/obsproject/obs-studio/archive/#OBS_VER#.zip"
-)
-
-$ErrorActionPreference = "Stop"
-Set-PSDebug -Trace 1
-
-$obs_bin_url = $OBS_BIN_URL.Replace("#OBS_VER#", "$OBS_VER")
-
-$obs_bin_url_x86 = $obs_bin_url.Replace("#ARCH#", "x86")
-$obs_bin_filename_x86 = $obs_bin_url_x86.Split("/")[-1]
-$obs_bin_dirname_x86 =  $obs_bin_filename_x86 -replace "\.[^.]+$", ""
-
-$obs_bin_url_x64 = $obs_bin_url.Replace("#ARCH#", "x64")
-$obs_bin_filename_x64 = $obs_bin_url_x64.Split("/")[-1]
-$obs_bin_dirname_x64 = $obs_bin_filename_x64 -replace "\.[^.]+$", ""
-
-$obs_src_url = $OBS_SRC_URL.Replace("#OBS_VER#", "$OBS_VER")
-$obs_src_filename = "obs-studio-$($obs_src_url.Split("/")[-1])"
-
-If ($Env:APPVEYOR -ne "True") {
-    function Start-FileDownload {
-        param([string]$URL, [string]$FileName)
-        Invoke-WebRequest -OutFile $FileName -TimeoutSec 300000 -Uri $URL
-    }
-}
-
-Start-FileDownload $obs_bin_url_x86 -FileName ../$obs_bin_filename_x86
-Start-FileDownload $obs_bin_url_x64 -FileName ../$obs_bin_filename_x64
-Start-FileDownload $obs_src_url -FileName ../$obs_src_filename
-
-unzip -oqd ../$obs_bin_dirname_x86 ../$obs_bin_filename_x86
-unzip -oqd ../$obs_bin_dirname_x64 ../$obs_bin_filename_x64
-unzip -oqd .. ../$obs_src_filename
-& "../obs-studio-$OBS_VER/CI/install-qt-win.cmd"
diff --git a/docs/Readme.md b/docs/Readme.md
index 9d3eca24..f0a8feaf 100644
--- a/docs/Readme.md
+++ b/docs/Readme.md
@@ -34,11 +34,11 @@ zipファイルを OBS のフォルダーに解凍してインストール完了
 
 # 要求環境
 
-OBS-Studio バージョン 25.0.0 以降
-また、OBS-Studio 本体は QT 5.10.1 と共にビルドしたバージョン
+OBS-Studio バージョン 26.1.1 以降
+また、OBS-Studio 本体は QT 5.15.2 と共にビルドしたバージョン
 
 確認済：
-obs-studio 25.0.1 ~ obs-studio 25.0.3
+obs-studio 26.1.1
 
 
 # よくあるご質問
@@ -60,12 +60,12 @@ A: このプラグインは OBS 本体のエンコーダーと共有している
 # How to Build
 
 1. Prepare environment
-   1. Put official release OBS 25.0 into obs-bin directory. 
+   1. Put official release OBS 26.1.2 into obs-bin directory. 
    2. Extract OBS source code of same version as binary to obs-src
    3. Download Qt that obs-bin uses. Which can be found in CI\install-qt-win.cmd
 
 2. Configure
-   Use cmake to configure this project. must use VS2017 or higher. 
+   Use cmake to configure this project. must use VS2019 or higher. 
    cmake's QTDIR variable is set to the path of QT in the same version as obs uses. 
    
    Set CMAKE_BUILD_TYPE to Release. 
diff --git a/githubci/build.bat b/githubci/build.bat
new file mode 100644
index 00000000..bb0eaaee
--- /dev/null
+++ b/githubci/build.bat
@@ -0,0 +1,28 @@
+set OBSBIN_VER=26.1.1
+set OBSSRC_VER=26.1.2
+
+curl -o obs-bin-x86.zip "https://cdn-fastly.obsproject.com/downloads/OBS-Studio-%OBSBIN_VER%-Full-x86.zip"
+curl -o obs-bin-x64.zip "https://cdn-fastly.obsproject.com/downloads/OBS-Studio-%OBSBIN_VER%-Full-x64.zip"
+git clone --depth=1 -b %OBSSRC_VER% "https://github.com/obsproject/obs-studio.git" obs-src
+call obs-src\CI\install-qt-win.cmd
+cmake -E make_directory obs-bin
+pushd obs-bin
+cmake -E tar zxf ..\obs-bin-x86.zip
+cmake -E tar zxf ..\obs-bin-x64.zip
+popd
+
+set QTDIR32=-DQTDIR="C:/QtDep/5.15.2/msvc2019"
+set QTDIR64=-DQTDIR="C:/QtDep/5.15.2/msvc2019_64"
+
+cmake %QTDIR32% -G "Visual Studio 16 2019" -A Win32 -B build_x86 -S . -DCMAKE_INSTALL_PREFIX=dist
+cmake --build build_x86 --config Release
+cmake --install build_x86 --config Release
+
+cmake %QTDIR64% -G "Visual Studio 16 2019" -A x64 -B build_x64 -S . -DCMAKE_INSTALL_PREFIX=dist
+cmake --build build_x64 --config Release
+cmake --install build_x64 --config Release
+
+if not exist dist\nul exit /b
+pushd dist
+cmake -E tar cf ..\release.zip --format=zip .
+popd