diff --git a/snapshot.xml b/snapshot.xml
index eaa3881..3c9c294 100644
--- a/snapshot.xml
+++ b/snapshot.xml
@@ -9,7 +9,7 @@
   <project dest-branch="refs/heads/main-R81-12871.B" name="cos/manifest" path="manifest" revision="1a1ca487b7a8921eb66251ff1dec99a05a90050e" upstream="refs/heads/main-R81-12871.B">
     <copyfile dest="LICENSE" src="LICENSE"/>
   </project>
-  <project dest-branch="refs/heads/main-R81-12871.B" name="cos/overlays/board-overlays" path="src/overlays" revision="4c17a3930a281827e0295837d7c2a406a9ac738a" upstream="refs/heads/main-R81-12871.B"/>
+  <project dest-branch="refs/heads/main-R81-12871.B" name="cos/overlays/board-overlays" path="src/overlays" revision="67ed03d510be9ceda0707ed5386f3da5210e0f28" upstream="refs/heads/main-R81-12871.B"/>
   <project dest-branch="refs/heads/master" name="cos/repohooks" path="src/repohooks" revision="bcba2b09e0f95c6d131fa69442b7d6bf271e9325" upstream="refs/heads/master"/>
   <project name="mirrors/cros/aosp/platform/external/modp_b64" path="src/third_party/modp_b64" revision="ae26ad8516036774fd3b6e84a98a89955dcf5f61"/>
   <project name="mirrors/cros/chromium/tools/depot_tools" path="src/chromium/depot_tools" revision="9253a6857415ff9a401805b90dbefef70ec874a4"/>
@@ -26,9 +26,9 @@
   <project name="mirrors/cros/chromiumos/third_party/portage_tool" path="src/third_party/portage_tool" revision="f2244c7d720232d2629c51baa257f9677181f9d9"/>
   <project name="mirrors/cros/chromiumos/third_party/pyelftools" path="chromite/third_party/pyelftools" revision="0890b98431a9b2e637c18f719232d06a4e5c3cd8"/>
   <project name="mirrors/cros/chromiumos/third_party/toolchain-utils" path="src/third_party/toolchain-utils" revision="5534af8f4f31df22ca307e3e3faa16487fa3d2d2"/>
-  <project dest-branch="refs/heads/main-R81-12871.B-cos-4.19" name="third_party/kernel" path="src/third_party/kernel/v4.19" revision="a9c94b0cc8f9bfa1c0a19b89624f9701b5ba58bd" upstream="refs/heads/main-R81-12871.B-cos-4.19"/>
-  <project dest-branch="refs/heads/main-R81-12871.B" name="third_party/overlays/chromiumos-overlay" path="src/third_party/chromiumos-overlay" revision="9d01539fdd1a6d84f75413cbe496f83f3fd357bc" sync-c="true" upstream="refs/heads/main-R81-12871.B"/>
-  <project dest-branch="refs/heads/main-R81-12871.B" name="third_party/overlays/portage-stable" path="src/third_party/portage-stable" revision="7f59190889544f7dc647973218f114a1cc777d35" upstream="refs/heads/main-R81-12871.B"/>
+  <project dest-branch="refs/heads/main-R81-12871.B-cos-4.19" name="third_party/kernel" path="src/third_party/kernel/v4.19" revision="6c8a974ccc59f0ec09055961ade85a68d99c1225" upstream="refs/heads/main-R81-12871.B-cos-4.19"/>
+  <project dest-branch="refs/heads/main-R81-12871.B" name="third_party/overlays/chromiumos-overlay" path="src/third_party/chromiumos-overlay" revision="752ba3ca7c510558f8e314b9c2d6b1adb3c3b724" sync-c="true" upstream="refs/heads/main-R81-12871.B"/>
+  <project dest-branch="refs/heads/main-R81-12871.B" name="third_party/overlays/portage-stable" path="src/third_party/portage-stable" revision="fcf473e6c100486a96be830f89f18533236f9371" upstream="refs/heads/main-R81-12871.B"/>
   
   <repo-hooks enabled-list="pre-upload" in-project="cos/repohooks"/>
 </manifest>