diff --git a/eng/pipelines/coreclr/libraries-pgo.yml b/eng/pipelines/coreclr/libraries-pgo.yml
index a8f0e16b01f35c..bbf62138a967fa 100644
--- a/eng/pipelines/coreclr/libraries-pgo.yml
+++ b/eng/pipelines/coreclr/libraries-pgo.yml
@@ -52,7 +52,7 @@ extends:
           - windows_x64
           jobParameters:
             # Default timeout is 150 minutes (2.5 hours), which is not enough for stress.
-            timeoutInMinutes: 660
+            timeoutInMinutes: 690
             buildArgs: -s clr+libs+libs.tests -rc Checked -c $(_BuildConfig) /p:ArchiveTests=true
             postBuildSteps:
               - template: /eng/pipelines/libraries/helix.yml