diff --git a/JDBC.NET.Bridge/pom.xml b/JDBC.NET.Bridge/pom.xml
index 7a42ecb..b7b7261 100644
--- a/JDBC.NET.Bridge/pom.xml
+++ b/JDBC.NET.Bridge/pom.xml
@@ -19,19 +19,19 @@
         <dependency>
             <groupId>io.grpc</groupId>
             <artifactId>grpc-netty-shaded</artifactId>
-            <version>1.46.0</version>
+            <version>1.53.0</version>
         </dependency>
 
         <dependency>
             <groupId>io.grpc</groupId>
             <artifactId>grpc-protobuf</artifactId>
-            <version>1.46.0</version>
+            <version>1.53.0</version>
         </dependency>
 
         <dependency>
             <groupId>io.grpc</groupId>
             <artifactId>grpc-stub</artifactId>
-            <version>1.46.0</version>
+            <version>1.53.0</version>
         </dependency>
 
         <dependency>
@@ -50,7 +50,7 @@
         <dependency>
             <groupId>com.google.protobuf</groupId>
             <artifactId>protobuf-java</artifactId>
-            <version>3.21.7</version>
+            <version>3.22.0</version>
         </dependency>
     </dependencies>
 
diff --git a/JDBC.NET.Data/JDBC.NET.Data.csproj b/JDBC.NET.Data/JDBC.NET.Data.csproj
index 4eca37a..98c21d9 100644
--- a/JDBC.NET.Data/JDBC.NET.Data.csproj
+++ b/JDBC.NET.Data/JDBC.NET.Data.csproj
@@ -10,15 +10,15 @@
     <RepositoryUrl>https://github.com/chequer-io/JDBC.NET</RepositoryUrl>
     <PackageProjectUrl>https://github.com/chequer-io/JDBC.NET</PackageProjectUrl>
     <PackageIcon>Logo.jpg</PackageIcon>
-    <Version>3.4.2</Version>
+    <Version>3.4.3</Version>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="J2NET" Version="1.2.0" />
-    <PackageReference Include="Google.Protobuf" Version="3.19.3" />
-    <PackageReference Include="Grpc" Version="2.43.0" />
-    <PackageReference Include="Grpc.Tools" Version="2.43.0">
+    <PackageReference Include="Google.Protobuf" Version="3.22.0" />
+    <PackageReference Include="Grpc" Version="2.46.6" />
+    <PackageReference Include="Grpc.Tools" Version="2.51.0">
         <PrivateAssets>all</PrivateAssets>
         <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
diff --git a/JDBC.NET.Data/JdbcCommand.cs b/JDBC.NET.Data/JdbcCommand.cs
index 6f1da40..1bc7020 100644
--- a/JDBC.NET.Data/JdbcCommand.cs
+++ b/JDBC.NET.Data/JdbcCommand.cs
@@ -276,7 +276,7 @@ private void CloseStatement()
             if (Connection is not JdbcConnection jdbcConnection)
                 throw new InvalidOperationException();
 
-            if (Connection.State != ConnectionState.Closed)
+            if (Connection.State is not ConnectionState.Closed)
             {
                 jdbcConnection.Bridge.Statement.closeStatement(new CloseStatementRequest
                 {
diff --git a/JDBC.NET.Sample/JDBC.NET.Sample.csproj b/JDBC.NET.Sample/JDBC.NET.Sample.csproj
index e7614de..fbf8a9e 100644
--- a/JDBC.NET.Sample/JDBC.NET.Sample.csproj
+++ b/JDBC.NET.Sample/JDBC.NET.Sample.csproj
@@ -10,7 +10,7 @@
   </ItemGroup>
 
   <PropertyGroup>
-      <RuntimeVersion>1.1.0</RuntimeVersion>
+      <RuntimeVersion>1.2.0</RuntimeVersion>
       <OSPlatform Condition="'$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::OSX)))' == 'true'">OSX</OSPlatform>
       <OSPlatform Condition="'$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::Linux)))' == 'true'">Linux</OSPlatform>
       <OSPlatform Condition="'$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::Windows)))' == 'true'">Windows</OSPlatform>