diff --git a/Source/optimalDb/optimalDb.Persistence/optimalDb.Persistence.csproj b/Source/optimalDb/optimalDb.Persistence/optimalDb.Persistence.csproj
index 4240c9c..d867fd6 100644
--- a/Source/optimalDb/optimalDb.Persistence/optimalDb.Persistence.csproj
+++ b/Source/optimalDb/optimalDb.Persistence/optimalDb.Persistence.csproj
@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="System.Data.SqlClient" Version="4.8.3" />
+    <PackageReference Include="System.Data.SqlClient" Version="4.9.1" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/Source/optimalDb/optimalDb.WinForms/optimalDb.WinForms.csproj b/Source/optimalDb/optimalDb.WinForms/optimalDb.WinForms.csproj
index 54564c9..e5f7749 100644
--- a/Source/optimalDb/optimalDb.WinForms/optimalDb.WinForms.csproj
+++ b/Source/optimalDb/optimalDb.WinForms/optimalDb.WinForms.csproj
@@ -16,7 +16,7 @@
   <ItemGroup>
     <PackageReference Include="Dax-FCTB" Version="2.16.26.120" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
-    <PackageReference Include="System.Data.SqlClient" Version="4.8.3" />
+    <PackageReference Include="System.Data.SqlClient" Version="4.9.1" />
   </ItemGroup>
 
   <ItemGroup>