diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index ecd4217..53356ab 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -16,6 +16,7 @@ updates:
ignore:
# Block updates to all exposed dependencies of the NuGet packages we produce, as updating them would be a breaking change.
- dependency-name: 'JsonApiDotNetCore*'
+ - dependency-name: 'MongoDB.Driver*'
# Block major updates of packages that require a matching .NET version.
- dependency-name: 'Microsoft.AspNetCore*'
update-types: ["version-update:semver-major"]
diff --git a/Directory.Build.props b/Directory.Build.props
index b5169a9..c2e8807 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -31,6 +31,7 @@
2.3.*
1.3.*
2023.2.*
+ 2.21.*
1.1.*
17.7.*
2.5.*
diff --git a/test/TestBuildingBlocks/TestBuildingBlocks.csproj b/test/TestBuildingBlocks/TestBuildingBlocks.csproj
index ecb2125..9d30f13 100644
--- a/test/TestBuildingBlocks/TestBuildingBlocks.csproj
+++ b/test/TestBuildingBlocks/TestBuildingBlocks.csproj
@@ -18,6 +18,7 @@
+