diff --git a/eng/Version.Details.props b/eng/Version.Details.props
index 4189c1aaab81..6db3bdf4921a 100644
--- a/eng/Version.Details.props
+++ b/eng/Version.Details.props
@@ -140,8 +140,8 @@ This file should be imported by eng/Versions.props
     
     2.1.0
     
-    2.1.0-preview.25508.5
-    4.1.0-preview.25508.5
+    2.1.0-preview.25511.2
+    4.1.0-preview.25511.2
   
   
   
diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index d6edacbe4851..4e7fe37ebfd9 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -553,13 +553,13 @@
       https://github.com/dotnet/dotnet
       f448387a0e80f2fdeaec2d2f99ace7284fe37aac
     
-    
+    
       https://github.com/microsoft/testfx
-      9866a77221b818a70721106b9622eac95f81adec
+      f820ad104e64123673d850e8f892d84c8cae113c
     
-    
+    
       https://github.com/microsoft/testfx
-      9866a77221b818a70721106b9622eac95f81adec
+      f820ad104e64123673d850e8f892d84c8cae113c
     
     
       https://github.com/dotnet/dotnet