diff --git a/.github/workflows/teams-api-drift-pr.yml b/.github/workflows/teams-api-drift-pr.yml
index 80105cec0..4d611b080 100644
--- a/.github/workflows/teams-api-drift-pr.yml
+++ b/.github/workflows/teams-api-drift-pr.yml
@@ -15,6 +15,7 @@ on:
     branches:
       - main
       - 'rel/**'
+      - southworks/add/teams-api-drift
     paths:
       - Directory.Packages.props
 
diff --git a/Directory.Packages.props b/Directory.Packages.props
index c1912f5b2..49b22aad7 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -21,8 +21,8 @@
     <Microsoft_IdentityModel_PkgVer>8.22.0</Microsoft_IdentityModel_PkgVer>
     <Microsoft_IdentityClient_PkgVer>4.87.0</Microsoft_IdentityClient_PkgVer>
     <Xunit_PackageVersion>2.9.3</Xunit_PackageVersion>
-    <Xunit_v3_PackageVersion>3.0.1</Xunit_v3_PackageVersion>
-    <Microsoft_Teams_Apps_PkgVer Condition="'$(Microsoft_Teams_Apps_PkgVer)' == ''">2.1.0</Microsoft_Teams_Apps_PkgVer>
+    <Xunit_v3_PackageVersion>3.0.1</Xunit_v3_PackageVersion>
+    <Microsoft_Teams_Apps_PkgVer Condition="'$(Microsoft_Teams_Apps_PkgVer)' == ''">2.1.0-driftfixture.20260827.1</Microsoft_Teams_Apps_PkgVer>
   </PropertyGroup>
   <ItemGroup>
     <PackageVersion Include="Nerdbank.GitVersioning" Version="3.6.146" />
@@ -150,4 +150,4 @@
     <!-- A365 -->
     <PackageVersion Include="Microsoft.Agents.A365.Notifications" Version="1.1.14-preview" />
   </ItemGroup>
-</Project>
+</Project>
diff --git a/scripts/TeamsApiDrift/teams-api-usage.json b/scripts/TeamsApiDrift/teams-api-usage.json
index 15b6430dc..004005785 100644
--- a/scripts/TeamsApiDrift/teams-api-usage.json
+++ b/scripts/TeamsApiDrift/teams-api-usage.json
@@ -1,7 +1,7 @@
 {
   "schemaVersion": 1,
   "package": "Microsoft.Teams.Apps",
-  "declaredVersion": "2.1.0",
+  "declaredVersion": "2.1.0-driftfixture.20260827.1",
   "sourceRoot": "src/libraries/Extensions/Microsoft.Agents.Extensions.MSTeams",
   "usages": [
     { "upstreamSymbol": "Microsoft.Teams.Apps.Clients.ApiClient", "members": [], "usageKinds": ["extension-receiver"], "exposure": "publicly-exposed", "files": ["src/libraries/Extensions/Microsoft.Agents.Extensions.MSTeams/TeamsApiClientExtensions.cs"] },