diff --git a/src/IdentityServer4.Postgresql/IdentityServer4.Postgresql.csproj b/src/IdentityServer4.Postgresql/IdentityServer4.Postgresql.csproj
index 4fa9891..81b72a4 100644
--- a/src/IdentityServer4.Postgresql/IdentityServer4.Postgresql.csproj
+++ b/src/IdentityServer4.Postgresql/IdentityServer4.Postgresql.csproj
@@ -15,7 +15,7 @@
     <GenerateAssemblyProductAttribute>false</GenerateAssemblyProductAttribute>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="IdentityServer4" Version="2.5.4" />
+    <PackageReference Include="IdentityServer4" Version="4.0.2" />
     <PackageReference Include="Marten" Version="3.11.0" />
     <PackageReference Include="AutoMapper" Version="9.0.0" />
   </ItemGroup>