diff --git a/Directory.Packages.props b/Directory.Packages.props
index c03b54e08..2deb725af 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -22,6 +22,6 @@
     <PackageVersion Include="StyleCop.Analyzers" Version="1.2.0-beta.556" />
     <!-- Should stay on LTS .NET releases. -->
     <PackageVersion Include="System.Formats.Asn1" Version="10.0.9" />
-    <PackageVersion Include="Testcontainers" Version="4.12.0" />
+    <PackageVersion Include="Testcontainers" Version="4.11.0" /> <!-- 4.12 is broken on .NET Framework -->
   </ItemGroup>
 </Project>
diff --git a/test/Renci.SshNet.IntegrationTests/.dockerignore b/test/Renci.SshNet.IntegrationTests/.dockerignore
new file mode 100644
index 000000000..a8eb4de7e
--- /dev/null
+++ b/test/Renci.SshNet.IntegrationTests/.dockerignore
@@ -0,0 +1,3 @@
+*
+!server/*
+!user/*