diff --git a/src/PlcInterface.Ads/PlcInterface.Ads.csproj b/src/PlcInterface.Ads/PlcInterface.Ads.csproj
index 9ae704f..6f4e339 100644
--- a/src/PlcInterface.Ads/PlcInterface.Ads.csproj
+++ b/src/PlcInterface.Ads/PlcInterface.Ads.csproj
@@ -21,7 +21,7 @@
     <PackageReference Include="Beckhoff.TwinCAT.Ads" Version="6.1.203" />
     <PackageReference Include="Beckhoff.TwinCAT.Ads.Reactive" Version="6.1.203" />
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="8.0.2" />
-    <PackageReference Include="Microsoft.Extensions.Options" Version="8.0.2" />
+    <PackageReference Include="Microsoft.Extensions.Options" Version="9.0.0" />
     <PackageReference Include="System.IO.Abstractions" Version="21.1.3" />
   </ItemGroup>
 
diff --git a/src/PlcInterface.OpcUa/PlcInterface.OpcUa.csproj b/src/PlcInterface.OpcUa/PlcInterface.OpcUa.csproj
index 33d3201..043cf67 100644
--- a/src/PlcInterface.OpcUa/PlcInterface.OpcUa.csproj
+++ b/src/PlcInterface.OpcUa/PlcInterface.OpcUa.csproj
@@ -15,7 +15,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="8.0.2" />
-    <PackageReference Include="Microsoft.Extensions.Options" Version="8.0.2" />
+    <PackageReference Include="Microsoft.Extensions.Options" Version="9.0.0" />
     <PackageReference Include="OPCFoundation.NetStandard.Opc.Ua.Client" Version="1.5.374.126" />
   </ItemGroup>
 
diff --git a/test/PlcInterface.Ads.IntegrationTests/PlcInterface.Ads.IntegrationTests.csproj b/test/PlcInterface.Ads.IntegrationTests/PlcInterface.Ads.IntegrationTests.csproj
index 37ccf4a..a99e235 100644
--- a/test/PlcInterface.Ads.IntegrationTests/PlcInterface.Ads.IntegrationTests.csproj
+++ b/test/PlcInterface.Ads.IntegrationTests/PlcInterface.Ads.IntegrationTests.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.Options" Version="8.0.2" />
+    <PackageReference Include="Microsoft.Extensions.Options" Version="9.0.0" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.1" />
   </ItemGroup>
 
diff --git a/test/PlcInterface.Ads.Tests/PlcInterface.Ads.Tests.csproj b/test/PlcInterface.Ads.Tests/PlcInterface.Ads.Tests.csproj
index 78f7d45..2cf5a96 100644
--- a/test/PlcInterface.Ads.Tests/PlcInterface.Ads.Tests.csproj
+++ b/test/PlcInterface.Ads.Tests/PlcInterface.Ads.Tests.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.Options" Version="8.0.2" />
+    <PackageReference Include="Microsoft.Extensions.Options" Version="9.0.0" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.1" />
     <PackageReference Include="System.IO.Abstractions.TestingHelpers" Version="21.1.3" />
   </ItemGroup>
diff --git a/test/PlcInterface.IntegrationTests/PlcInterface.IntegrationTests.csproj b/test/PlcInterface.IntegrationTests/PlcInterface.IntegrationTests.csproj
index 9ca7772..04dd8af 100644
--- a/test/PlcInterface.IntegrationTests/PlcInterface.IntegrationTests.csproj
+++ b/test/PlcInterface.IntegrationTests/PlcInterface.IntegrationTests.csproj
@@ -2,7 +2,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="8.0.2" />
-    <PackageReference Include="Microsoft.Extensions.Options" Version="8.0.2" />
+    <PackageReference Include="Microsoft.Extensions.Options" Version="9.0.0" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/test/PlcInterface.Opc.IntegrationTests/PlcInterface.Opc.IntegrationTests.csproj b/test/PlcInterface.Opc.IntegrationTests/PlcInterface.Opc.IntegrationTests.csproj
index 6bc2bf8..fc91889 100644
--- a/test/PlcInterface.Opc.IntegrationTests/PlcInterface.Opc.IntegrationTests.csproj
+++ b/test/PlcInterface.Opc.IntegrationTests/PlcInterface.Opc.IntegrationTests.csproj
@@ -2,7 +2,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.1" />
-    <PackageReference Include="Microsoft.Extensions.Options" Version="8.0.2" />
+    <PackageReference Include="Microsoft.Extensions.Options" Version="9.0.0" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/test/PlcInterface.OpcUa.Tests/PlcInterface.OpcUa.Tests.csproj b/test/PlcInterface.OpcUa.Tests/PlcInterface.OpcUa.Tests.csproj
index d5aa70d..16f302e 100644
--- a/test/PlcInterface.OpcUa.Tests/PlcInterface.OpcUa.Tests.csproj
+++ b/test/PlcInterface.OpcUa.Tests/PlcInterface.OpcUa.Tests.csproj
@@ -3,7 +3,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.1" />
-    <PackageReference Include="Microsoft.Extensions.Options" Version="8.0.2" />
+    <PackageReference Include="Microsoft.Extensions.Options" Version="9.0.0" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/test/TestUtilities/TestUtilities.csproj b/test/TestUtilities/TestUtilities.csproj
index 537ef66..ee8c23f 100644
--- a/test/TestUtilities/TestUtilities.csproj
+++ b/test/TestUtilities/TestUtilities.csproj
@@ -6,6 +6,6 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="8.0.2" />
-    <PackageReference Include="Microsoft.Extensions.Options" Version="8.0.2" />
+    <PackageReference Include="Microsoft.Extensions.Options" Version="9.0.0" />
   </ItemGroup>
 </Project>