diff --git a/src/IDeepCloneable.Generator.Source/IDeepCloneable.Generator.Source.csproj b/src/IDeepCloneable.Generator.Source/IDeepCloneable.Generator.Source.csproj
index 441fa4d..e2f00a8 100644
--- a/src/IDeepCloneable.Generator.Source/IDeepCloneable.Generator.Source.csproj
+++ b/src/IDeepCloneable.Generator.Source/IDeepCloneable.Generator.Source.csproj
@@ -9,7 +9,7 @@
   <ItemGroup>
     <PackageReference Include="lint4sg" Version="0.1.6" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.4.0" />
-    <PackageReference Include="Polyfill" Version="10.8.1" Condition="!Exists('packages.config')">
+    <PackageReference Include="Polyfill" Version="10.11.1" Condition="!Exists('packages.config')">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
diff --git a/src/IDeepCloneable.Generator.Source/packages.lock.json b/src/IDeepCloneable.Generator.Source/packages.lock.json
index c6a7d99..4b2014a 100644
--- a/src/IDeepCloneable.Generator.Source/packages.lock.json
+++ b/src/IDeepCloneable.Generator.Source/packages.lock.json
@@ -20,8 +20,8 @@
       "Nerdbank.GitVersioning": {
         "type": "Direct",
         "requested": "[3.*, )",
-        "resolved": "3.9.50",
-        "contentHash": "HtOgGF6jZ+WYbXnCUCYPT8Y2d6mIJo9ozjK/FINTRsXdm4Zgv9GehUMa7EFoGQkqrMcDJNOIDwCmENnvXg4UbA=="
+        "resolved": "3.10.85",
+        "contentHash": "smhqiTAbnI/6NRn+k7m+a65qKY7nREbnFqFgqxiw3JS8kXiBUOxdCxIZFP9TOpCsoh46DbMlBlcd+dWQYAVVCA=="
       },
       "NETStandard.Library": {
         "type": "Direct",
@@ -34,9 +34,9 @@
       },
       "Polyfill": {
         "type": "Direct",
-        "requested": "[10.8.1, )",
-        "resolved": "10.8.1",
-        "contentHash": "zCmC6hnEKdHMFt1woGAq2oYZhx4EwELj8ArkBuGZBwX6Jg4M67eCa6YVmbMDSMwonCKZ9OGaKxOul60nVykTOw=="
+        "requested": "[10.11.1, )",
+        "resolved": "10.11.1",
+        "contentHash": "SeryCUevv4WJc2QxLZKJJM8wfR7DLqvM10u01lkHXv0qhFuN0oPRIuujxpgUyBZozpnx92DF6weUEptEaupj4Q=="
       },
       "SonarAnalyzer.CSharp": {
         "type": "Direct",
diff --git a/src/IDeepCloneable.Generator/IDeepCloneable.Generator.csproj b/src/IDeepCloneable.Generator/IDeepCloneable.Generator.csproj
index 8678c06..19d2b09 100644
--- a/src/IDeepCloneable.Generator/IDeepCloneable.Generator.csproj
+++ b/src/IDeepCloneable.Generator/IDeepCloneable.Generator.csproj
@@ -28,7 +28,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Polyfill" Version="10.8.1" Condition="!Exists('packages.config')">
+    <PackageReference Include="Polyfill" Version="10.11.1" Condition="!Exists('packages.config')">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
diff --git a/src/IDeepCloneable.Generator/packages.lock.json b/src/IDeepCloneable.Generator/packages.lock.json
index 38d14f8..42fbef0 100644
--- a/src/IDeepCloneable.Generator/packages.lock.json
+++ b/src/IDeepCloneable.Generator/packages.lock.json
@@ -26,8 +26,8 @@
       "Nerdbank.GitVersioning": {
         "type": "Direct",
         "requested": "[3.*, )",
-        "resolved": "3.9.50",
-        "contentHash": "HtOgGF6jZ+WYbXnCUCYPT8Y2d6mIJo9ozjK/FINTRsXdm4Zgv9GehUMa7EFoGQkqrMcDJNOIDwCmENnvXg4UbA=="
+        "resolved": "3.10.85",
+        "contentHash": "smhqiTAbnI/6NRn+k7m+a65qKY7nREbnFqFgqxiw3JS8kXiBUOxdCxIZFP9TOpCsoh46DbMlBlcd+dWQYAVVCA=="
       },
       "NETStandard.Library": {
         "type": "Direct",
@@ -40,9 +40,9 @@
       },
       "Polyfill": {
         "type": "Direct",
-        "requested": "[10.8.1, )",
-        "resolved": "10.8.1",
-        "contentHash": "zCmC6hnEKdHMFt1woGAq2oYZhx4EwELj8ArkBuGZBwX6Jg4M67eCa6YVmbMDSMwonCKZ9OGaKxOul60nVykTOw=="
+        "requested": "[10.11.1, )",
+        "resolved": "10.11.1",
+        "contentHash": "SeryCUevv4WJc2QxLZKJJM8wfR7DLqvM10u01lkHXv0qhFuN0oPRIuujxpgUyBZozpnx92DF6weUEptEaupj4Q=="
       },
       "SonarAnalyzer.CSharp": {
         "type": "Direct",