diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..4a49128
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,17 @@
+name: CI
+on: [push, pull_request]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - name: Prepare FFMpeg
+      run: sudo apt-get update && sudo apt-get install -y ffmpeg
+    - name: Setup .NET Core
+      uses: actions/setup-dotnet@v1
+      with:
+        dotnet-version: 3.1.101
+    - name: Build with dotnet
+      run: dotnet build
+    - name: Test with dotnet
+      run: dotnet test
diff --git a/.travis.yml b/.travis.yml
index a44cb8b..1cb2185 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,6 @@
 language: csharp
 mono: none
-dotnet: 2.1.300
+dotnet: 3.1
 os:
   - linux
   - osx
diff --git a/FFMpegCore.Test/ArgumentBuilderTest.cs b/FFMpegCore.Test/ArgumentBuilderTest.cs
index 68df940..9dd1b9a 100644
--- a/FFMpegCore.Test/ArgumentBuilderTest.cs
+++ b/FFMpegCore.Test/ArgumentBuilderTest.cs
@@ -53,7 +53,7 @@ public void Builder_BuildString_Scale()
         public void Builder_BuildString_AudioCodec()
         {
             var str = GetArgumentsString(new AudioCodecArgument(AudioCodec.Aac, AudioQuality.Normal));
-            Assert.AreEqual(str, "-i \"input.mp4\" -codec:a aac -b:a 128k -strict experimental \"output.mp4\"");
+            Assert.AreEqual(str, "-i \"input.mp4\" -c:a aac -b:a 128k \"output.mp4\"");
         }
 
         [TestMethod]
@@ -204,7 +204,7 @@ public void Builder_BuildString_Codec()
         {
             var str = GetArgumentsString(new VideoCodecArgument(VideoCodec.LibX264));
 
-            Assert.AreEqual(str, "-i \"input.mp4\" -codec:v libx264 -pix_fmt yuv420p \"output.mp4\"");
+            Assert.AreEqual(str, "-i \"input.mp4\" -c:v libx264 -pix_fmt yuv420p \"output.mp4\"");
         }
 
         [TestMethod]
@@ -212,7 +212,7 @@ public void Builder_BuildString_Codec_Override()
         {
             var str = GetArgumentsString(new VideoCodecArgument(VideoCodec.LibX264), new OverrideArgument());
 
-            Assert.AreEqual(str, "-i \"input.mp4\" -codec:v libx264 -pix_fmt yuv420p -y \"output.mp4\"");
+            Assert.AreEqual(str, "-i \"input.mp4\" -c:v libx264 -pix_fmt yuv420p -y \"output.mp4\"");
         }
 
         [TestMethod]
diff --git a/FFMpegCore.Test/FFMpegCore.Test.csproj b/FFMpegCore.Test/FFMpegCore.Test.csproj
index 33df305..8e749dd 100644
--- a/FFMpegCore.Test/FFMpegCore.Test.csproj
+++ b/FFMpegCore.Test/FFMpegCore.Test.csproj
@@ -1,7 +1,7 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
 
     <IsPackable>false</IsPackable>
   </PropertyGroup>
diff --git a/FFMpegCore.Test/ffmpeg.config.json b/FFMpegCore.Test/ffmpeg.config.json
index 12322b0..b9c9a56 100644
--- a/FFMpegCore.Test/ffmpeg.config.json
+++ b/FFMpegCore.Test/ffmpeg.config.json
@@ -1,3 +1,3 @@
 {
-  "RootDirectory": "C:\\ProgramData\\chocolatey\\lib\\ffmpeg\\tools\\ffmpeg\\bin\\"
+  "RootDirectory": ""
 }
\ No newline at end of file
diff --git a/FFMpegCore/FFMPEG/Argument/ArgumentStringifier.cs b/FFMpegCore/FFMPEG/Argument/ArgumentStringifier.cs
index 0a723ef..ee11c03 100644
--- a/FFMpegCore/FFMPEG/Argument/ArgumentStringifier.cs
+++ b/FFMpegCore/FFMPEG/Argument/ArgumentStringifier.cs
@@ -24,7 +24,7 @@ internal static string Audio(AudioCodec codec, int bitrate)
 
         internal static string Audio(AudioCodec codec)
         {
-            return $"-codec:a {codec.ToString().ToLower()} ";
+            return $"-c:a {codec.ToString().ToLower()} ";
         }
 
         internal static string Audio(AudioQuality bitrate)
@@ -34,12 +34,12 @@ internal static string Audio(AudioQuality bitrate)
 
         internal static string Audio(int bitrate)
         {
-            return $"-b:a {bitrate}k -strict experimental ";
+            return $"-b:a {bitrate}k ";
         }
 
         internal static string Video(VideoCodec codec, int bitrate = 0)
         {
-            var video = $"-codec:v {codec.ToString().ToLower()} -pix_fmt yuv420p ";
+            var video = $"-c:v {codec.ToString().ToLower()} -pix_fmt yuv420p ";
 
             if (bitrate > 0)
             {
diff --git a/FFMpegCore/FFMPEG/FFMpeg.cs b/FFMpegCore/FFMPEG/FFMpeg.cs
index 5fe7689..b5b49db 100644
--- a/FFMpegCore/FFMPEG/FFMpeg.cs
+++ b/FFMpegCore/FFMPEG/FFMpeg.cs
@@ -99,11 +99,9 @@ public Bitmap Snapshot(VideoInfo source, FileInfo output, Size? size = null, Tim
             Bitmap result;
             using (var bmp = (Bitmap) Image.FromFile(output.FullName))
             {
-                using (var ms = new MemoryStream())
-                {
-                    bmp.Save(ms, ImageFormat.Png);
-                    result = new Bitmap(ms);
-                }
+                using var ms = new MemoryStream();
+                bmp.Save(ms, ImageFormat.Png);
+                result = new Bitmap(ms);
             }
 
             if (output.Exists && !persistSnapshotOnFileSystem)
@@ -499,13 +497,13 @@ private bool RunProcess(ArgumentContainer container, FileInfo output)
                 Process.Close();
 
                 if (File.Exists(output.FullName))
-                    using (var file = File.Open(output.FullName, FileMode.Open))
+                {
+                    using var file = File.Open(output.FullName, FileMode.Open);
+                    if (file.Length == 0)
                     {
-                        if (file.Length == 0)
-                        {
-                            throw new FFMpegException(FFMpegExceptionType.Process, _errorOutput);
-                        }
+                        throw new FFMpegException(FFMpegExceptionType.Process, _errorOutput);
                     }
+                }
                 else
                 {
                     throw new FFMpegException(FFMpegExceptionType.Process, _errorOutput);
diff --git a/FFMpegCore/FFMpegCore.csproj b/FFMpegCore/FFMpegCore.csproj
index a72cabc..3fc56cf 100644
--- a/FFMpegCore/FFMpegCore.csproj
+++ b/FFMpegCore/FFMpegCore.csproj
@@ -129,7 +129,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Instances" Version="1.1.0" />
+    <PackageReference Include="Instances" Version="1.3.3" />
     <PackageReference Include="Microsoft.CSharp" Version="4.5.0" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
     <PackageReference Include="RunProcessAsTask" Version="1.2.4" />