diff --git a/TIDALDL-UI-PRO/.vs/TIDALDL-UI/v16/.suo b/TIDALDL-UI-PRO/.vs/TIDALDL-UI/v16/.suo
index 78d190c..48ecfe3 100644
Binary files a/TIDALDL-UI-PRO/.vs/TIDALDL-UI/v16/.suo and b/TIDALDL-UI-PRO/.vs/TIDALDL-UI/v16/.suo differ
diff --git a/TIDALDL-UI-PRO/App.xaml b/TIDALDL-UI-PRO/App.xaml
index b089463..d8da53a 100644
--- a/TIDALDL-UI-PRO/App.xaml
+++ b/TIDALDL-UI-PRO/App.xaml
@@ -30,6 +30,7 @@
                 <ResourceDictionary Source="Properties/Lang/StringResource.Chinese.xaml" />
                 <ResourceDictionary Source="Properties/Lang/StringResource.Russian.xaml" />
                 <ResourceDictionary Source="Properties/Lang/StringResource.Turkish.xaml" />
+                <ResourceDictionary Source="Properties/Lang/StringResource.German.xaml" />
                 <ResourceDictionary Source="Properties/Lang/StringResource.xaml" />
             </ResourceDictionary.MergedDictionaries>
         </s:ApplicationLoader>
diff --git a/TIDALDL-UI-PRO/Else/Language.cs b/TIDALDL-UI-PRO/Else/Language.cs
index 5568022..54b45c2 100644
--- a/TIDALDL-UI-PRO/Else/Language.cs
+++ b/TIDALDL-UI-PRO/Else/Language.cs
@@ -25,6 +25,7 @@ public enum Type
             Chinese,
             Russian,
             Turkish,
+            German,
         }
 
         private static ResourceDictionary GetResourceDictionaryByType(Type type = Type.Default)
diff --git a/TIDALDL-UI-PRO/Properties/AssemblyInfo.cs b/TIDALDL-UI-PRO/Properties/AssemblyInfo.cs
index 0df318f..b5f84d7 100644
--- a/TIDALDL-UI-PRO/Properties/AssemblyInfo.cs
+++ b/TIDALDL-UI-PRO/Properties/AssemblyInfo.cs
@@ -51,5 +51,5 @@
 //可以指定所有这些值，也可以使用“生成号”和“修订号”的默认值
 //通过使用 "*"，如下所示:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.2.1.4")]
-[assembly: AssemblyFileVersion("1.2.1.4")]
+[assembly: AssemblyVersion("1.2.1.5")]
+[assembly: AssemblyFileVersion("1.2.1.5")]
diff --git a/TIDALDL-UI-PRO/TIDALDL-UI.csproj b/TIDALDL-UI-PRO/TIDALDL-UI.csproj
index bfc3512..5df3512 100644
--- a/TIDALDL-UI-PRO/TIDALDL-UI.csproj
+++ b/TIDALDL-UI-PRO/TIDALDL-UI.csproj
@@ -384,6 +384,10 @@
       <Generator>MSBuild:Compile</Generator>
       <SubType>Designer</SubType>
     </Page>
+    <Page Include="Properties\Lang\StringResource.German.xaml">
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
+    </Page>
     <Page Include="Properties\Lang\StringResource.Russian.xaml">
       <Generator>MSBuild:Compile</Generator>
       <SubType>Designer</SubType>
diff --git a/TIDALDL-UI-PRO/UPDATE_LOG.md b/TIDALDL-UI-PRO/UPDATE_LOG.md
index 999b809..e15c1c3 100644
--- a/TIDALDL-UI-PRO/UPDATE_LOG.md
+++ b/TIDALDL-UI-PRO/UPDATE_LOG.md
@@ -1,5 +1,6 @@
-
+#### v1.2.1.5
 - [x] Fix: video path err
+- [x] Add language: german
 
 #### v1.2.1.4
 - [x] Fix: download video