diff --git a/snapshot.xml b/snapshot.xml
index 7acd52a..23ded2a 100644
--- a/snapshot.xml
+++ b/snapshot.xml
@@ -4,7 +4,7 @@
   <remote fetch="https://chromium.googlesource.com" name="chromium" review="https://chromium-review.googlesource.com"/>
   <remote fetch="https://cos.googlesource.com" name="cos" review="https://cos-review.googlesource.com"/>
   
-  <default remote="cos" revision="refs/heads/master" sync-j="8"/>
+  <default remote="cos" revision="refs/heads/release-R109" sync-j="8"/>
   
   <project name="breakpad/breakpad" path="src/third_party/breakpad" remote="chromium" revision="1f9903c161229c55670ae0f92fcbcca9c5fa6b68"/>
   <project name="chromiumos/platform/fw-testing-configs" path="src/third_party/autotest/files/server/cros/faft/fw-testing-configs" remote="chromium" revision="b54d9f238f5afd6053ce9c558319f1d6dcf3e26c"/>
@@ -14,13 +14,13 @@
   <project name="chromiumos/platform/tast-tests" path="src/platform/tast-tests" remote="chromium" revision="11c6d6ad902fe467e48e25143d321ce04af826aa"/>
   <project name="chromiumos/third_party/hdctools" path="src/third_party/hdctools" remote="chromium" revision="b027d20dc97a00013c2b9d8c9ab932ddaa0c7008"/>
   <project name="chromiumos/third_party/rootdev" path="src/third_party/rootdev" remote="chromium" revision="7082cbf0ae51eb1044fe1a0749245e97e4fcfc89"/>
-  <project dest-branch="refs/heads/master" name="cos/cobble" path="src/platform/cobble" revision="a910c096139769e35720174069e81e89bf90fdc6" upstream="refs/heads/master"/>
-  <project dest-branch="refs/heads/main" name="cos/compliance" path="src/compliance" revision="84e9bb7cf896bae4d4588fcdfb609d0657c6efd6" upstream="refs/heads/main"/>
-  <project dest-branch="refs/heads/master" name="cos/manifest" path="manifest" revision="8fe04bf3833306ee400ab979546844c8821f2bab" upstream="refs/heads/master">
+  <project dest-branch="refs/heads/release-R109" name="cos/cobble" path="src/platform/cobble" revision="a910c096139769e35720174069e81e89bf90fdc6" upstream="refs/heads/release-R109"/>
+  <project dest-branch="refs/heads/main-R109" name="cos/compliance" path="src/compliance" revision="6b2f3ac22ea14355494cfa25013867d63ca8b50d" upstream="refs/heads/main-R109"/>
+  <project dest-branch="refs/heads/release-R109" name="cos/manifest" path="manifest" revision="23d7abd75baa283af6288d4daa6871fbb19d984d" upstream="refs/heads/release-R109">
     <copyfile dest="LICENSE" src="LICENSE"/>
   </project>
-  <project dest-branch="refs/heads/master" name="cos/overlays/board-overlays" path="src/overlays" revision="710c1a956bac9b45ab5fd87b9a6385a75ea6bf3f" upstream="refs/heads/master"/>
-  <project dest-branch="refs/heads/main" name="cos/policymanager" path="src/third_party/policymanager" revision="67cd180cded9c2cdd7d8acc02ab7edbac80aaf6e" upstream="refs/heads/main"/>
+  <project dest-branch="refs/heads/main-R109" name="cos/overlays/board-overlays" path="src/overlays" revision="075ad9374dc3b523e335e602e8631adba80e9d98" upstream="refs/heads/main-R109"/>
+  <project dest-branch="refs/heads/release-R109" name="cos/policymanager" path="src/third_party/policymanager" revision="67cd180cded9c2cdd7d8acc02ab7edbac80aaf6e" upstream="refs/heads/release-R109"/>
   <project dest-branch="refs/heads/master" name="cos/repohooks" path="src/repohooks" revision="8558f83888cd36610a071c6d5864de23b9e9d80f" upstream="refs/heads/master"/>
   <project name="linux-syscall-support.git" path="src/third_party/breakpad/src/third_party/lss" remote="chromium" revision="e1e7b0ad8ee99a875b272c8e33e308472e897660"/>
   <project name="mirrors/cros/aosp/platform/external/modp_b64" path="src/third_party/modp_b64" revision="68a503fff7af8fbf6f78cd496830813d41150817"/>
@@ -38,15 +38,15 @@
   <project name="mirrors/cros/chromiumos/third_party/pyelftools" path="chromite/third_party/pyelftools" revision="ba5e034f5d3a75036d1f5b2a614219906d0491d2"/>
   <project name="mirrors/cros/chromiumos/third_party/toolchain-utils" path="src/third_party/toolchain-utils" revision="b3d6d50936204862e109a2732f584641f11bce52"/>
   <project name="mirrors/cros/chromiumos/third_party/u-boot" path="src/third_party/u-boot/files" revision="9212cdcb482cdaf948269ddf6df48f8f27cd69b9"/>
-  <project dest-branch="refs/heads/main" name="third_party/chromite" path="chromite" revision="ac4545dc106674135f54874d02c69797f7308138" upstream="refs/heads/main"/>
-  <project dest-branch="refs/heads/cos-5.15" name="third_party/kernel" path="src/third_party/kernel/v5.15" revision="84f3ad7701ccc06437def723ab77f80845879f3b" upstream="refs/heads/cos-5.15"/>
-  <project dest-branch="refs/heads/cos-6.1" name="third_party/kernel" path="src/third_party/kernel/v6.1" revision="f496c0c37bed11464c38a6e1d89557891dbdde9f" upstream="refs/heads/cos-6.1"/>
-  <project dest-branch="refs/heads/master" name="third_party/overlays/chromiumos-overlay" path="src/third_party/chromiumos-overlay" revision="dda5abf573f5ba8cf975415f9b7d396717d43b3f" sync-c="true" upstream="refs/heads/master"/>
-  <project dest-branch="refs/heads/master" name="third_party/overlays/eclass-overlay" path="src/third_party/eclass-overlay" revision="67b21b838bcc37cb88c62f69f7876cd5f764003b" upstream="refs/heads/master"/>
-  <project dest-branch="refs/heads/master" name="third_party/overlays/portage-stable" path="src/third_party/portage-stable" revision="162ce5fd33ca9cd7a467d6d665a84aa217da5097" upstream="refs/heads/master"/>
-  <project dest-branch="refs/heads/main" name="third_party/platform/crosutils" path="src/scripts" revision="486fccf243b8c9d4a46e4d2d1c97e88e10581620" upstream="refs/heads/main"/>
-  <project dest-branch="refs/heads/main" name="third_party/platform/vboot_reference" path="src/platform/vboot_reference" revision="ae240a42e4d5a19e492e12dcecb3b5ec7307cc2c" upstream="refs/heads/main"/>
-  <project dest-branch="refs/heads/main" name="third_party/toolbox" path="src/third_party/toolbox" revision="7b4c0d34cf56f99d5287d939e96f786e2e1421a7" upstream="refs/heads/main"/>
+  <project dest-branch="refs/heads/release-R109" name="third_party/chromite" path="chromite" revision="ac4545dc106674135f54874d02c69797f7308138" upstream="refs/heads/release-R109"/>
+  <project dest-branch="refs/heads/main-R109-cos-5.15" name="third_party/kernel" path="src/third_party/kernel/v5.15" revision="84f3ad7701ccc06437def723ab77f80845879f3b" upstream="refs/heads/main-R109-cos-5.15"/>
+  <project dest-branch="refs/heads/main-R109-cos-6.1" name="third_party/kernel" path="src/third_party/kernel/v6.1" revision="5ae5d2ef41a687e2384ea3c96a0b4638fca68851" upstream="refs/heads/main-R109-cos-6.1"/>
+  <project dest-branch="refs/heads/main-R109" name="third_party/overlays/chromiumos-overlay" path="src/third_party/chromiumos-overlay" revision="66b72f0ec99b34f4d1c59f7eee08f252e56352ed" sync-c="true" upstream="refs/heads/main-R109"/>
+  <project dest-branch="refs/heads/release-R109" name="third_party/overlays/eclass-overlay" path="src/third_party/eclass-overlay" revision="67b21b838bcc37cb88c62f69f7876cd5f764003b" upstream="refs/heads/release-R109"/>
+  <project dest-branch="refs/heads/main-R109" name="third_party/overlays/portage-stable" path="src/third_party/portage-stable" revision="650ae2b28be81092e2b0fe1d984002f74576e599" upstream="refs/heads/main-R109"/>
+  <project dest-branch="refs/heads/release-R109" name="third_party/platform/crosutils" path="src/scripts" revision="486fccf243b8c9d4a46e4d2d1c97e88e10581620" upstream="refs/heads/release-R109"/>
+  <project dest-branch="refs/heads/release-R109" name="third_party/platform/vboot_reference" path="src/platform/vboot_reference" revision="ae240a42e4d5a19e492e12dcecb3b5ec7307cc2c" upstream="refs/heads/release-R109"/>
+  <project dest-branch="refs/heads/release-R109" name="third_party/toolbox" path="src/third_party/toolbox" revision="7b4c0d34cf56f99d5287d939e96f786e2e1421a7" upstream="refs/heads/release-R109"/>
   
   <repo-hooks enabled-list="pre-upload" in-project="cos/repohooks"/>
 </manifest>