diff --git a/README.md b/README.md
index a2ecf81..f1d1ad7 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ You can send patches by using these commands:
     <make edits>
     git add -A
     git commit -m "commit message"
-    git push ssh://<username>@gerrit.omnirom.org:29418/<project> HEAD:refs/for/android-8.1
+    git push ssh://<username>@gerrit.omnirom.org:29418/<project> HEAD:refs/for/android-9.0
 
 Register at <gerrit.omnirom.org> and use the username that you registered there in the above command
 
@@ -58,7 +58,7 @@ familiar with [Git and Repo](https://source.android.com/source/using-repo.html).
 
 To initialize your local repository using the OmniROM trees, use a command like this:
 
-    repo init -u git://github.com/omnirom/android.git -b android-8.1
+    repo init -u git://github.com/omnirom/android.git -b android-9.0
 
 Then to sync up:
 
diff --git a/omni-aosp.xml b/omni-aosp.xml
index 0cfc7fa..9c755f5 100644
--- a/omni-aosp.xml
+++ b/omni-aosp.xml
@@ -11,10 +11,10 @@
            fetch="https://github.com/omnirom"
            review="gerrit.omnirom.org" />
 
-  <project path="art" name="android_art" remote="omnirom" revision="android-8.1" groups="pdk" />
-  <project path="bionic" name="android_bionic" remote="omnirom" revision="android-8.1" groups="pdk" />
+  <project path="art" name="android_art" remote="omnirom" revision="android-9.0" groups="pdk" />
+  <project path="bionic" name="android_bionic" remote="omnirom" revision="android-9.0" groups="pdk" />
 
-  <project path="build/make" name="android_build" remote="omnirom" revision="android-8.1" groups="pdk" >
+  <project path="build/make" name="android_build" remote="omnirom" revision="android-9.0" groups="pdk" >
     <copyfile src="core/root.mk" dest="Makefile" />
     <linkfile src="CleanSpec.mk" dest="build/CleanSpec.mk" />
     <linkfile src="buildspec.mk.default" dest="build/buildspec.mk.default" />
@@ -23,70 +23,70 @@
     <linkfile src="target" dest="build/target" />
     <linkfile src="tools" dest="build/tools" />
   </project>
-  <project path="build/soong" name="android_build_soong" remote="omnirom" revision="android-8.1" >
+  <project path="build/soong" name="android_build_soong" remote="omnirom" revision="android-9.0" >
       <linkfile src="root.bp" dest="Android.bp" />
       <linkfile src="bootstrap.bash" dest="bootstrap.bash" />
   </project>
 
-  <project path="development" name="android_development" remote="omnirom" revision="android-8.1" groups="pdk-cw-fs,pdk-fs" />
+  <project path="development" name="android_development" remote="omnirom" revision="android-9.0" groups="pdk-cw-fs,pdk-fs" />
 
-  <project path="external/aac" name="android_external_aac" remote="omnirom" revision="android-8.1" />
-  <project path="external/chromium-webview" name="android_external_chromium-webview" remote="omnirom" revision="android-8.1" />
-  <project path="external/e2fsprogs" name="android_external_e2fsprogs" remote="omnirom" revision="android-8.1" />
-  <project path="external/f2fs-tools" name="android_external_f2fs-tools" remote="omnirom" revision="android-8.1" />
-  <project path="external/mksh" name="android_external_mksh" remote="omnirom" revision="android-8.1" />
-  <project path="external/tinycompress" name="android_external_tinycompress" remote="omnirom" revision="android-8.1" />
-  <project path="external/selinux" name="android_external_selinux" remote="omnirom" revision="android-8.1" />
-  <project path="external/toybox" name="android_external_toybox" remote="omnirom" revision="android-8.1" />
+  <project path="external/aac" name="android_external_aac" remote="omnirom" revision="android-9.0" />
+  <project path="external/chromium-webview" name="android_external_chromium-webview" remote="omnirom" revision="android-9.0" />
+  <project path="external/e2fsprogs" name="android_external_e2fsprogs" remote="omnirom" revision="android-9.0" />
+  <project path="external/f2fs-tools" name="android_external_f2fs-tools" remote="omnirom" revision="android-9.0" />
+  <project path="external/mksh" name="android_external_mksh" remote="omnirom" revision="android-9.0" />
+  <project path="external/tinycompress" name="android_external_tinycompress" remote="omnirom" revision="android-9.0" />
+  <project path="external/selinux" name="android_external_selinux" remote="omnirom" revision="android-9.0" />
+  <project path="external/toybox" name="android_external_toybox" remote="omnirom" revision="android-9.0" />
 
-  <project path="frameworks/av" name="android_frameworks_av" remote="omnirom" revision="android-8.1" />
-  <project path="frameworks/base" name="android_frameworks_base" remote="omnirom" revision="android-8.1" />
-  <project path="frameworks/native" name="android_frameworks_native" remote="omnirom" revision="android-8.1" />
-  <project path="frameworks/opt/telephony" name="android_frameworks_opt_telephony" remote="omnirom" revision="android-8.1" />
-  <project path="frameworks/opt/net/wifi" name="android_frameworks_opt_net_wifi" remote="omnirom" revision="android-8.1" />
-  <project path="frameworks/opt/net/ims" name="android_frameworks_opt_net_ims" remote="omnirom" revision="android-8.1" />
+  <project path="frameworks/av" name="android_frameworks_av" remote="omnirom" revision="android-9.0" />
+  <project path="frameworks/base" name="android_frameworks_base" remote="omnirom" revision="android-9.0" />
+  <project path="frameworks/native" name="android_frameworks_native" remote="omnirom" revision="android-9.0" />
+  <project path="frameworks/opt/telephony" name="android_frameworks_opt_telephony" remote="omnirom" revision="android-9.0" />
+  <project path="frameworks/opt/net/wifi" name="android_frameworks_opt_net_wifi" remote="omnirom" revision="android-9.0" />
+  <project path="frameworks/opt/net/ims" name="android_frameworks_opt_net_ims" remote="omnirom" revision="android-9.0" />
 
-  <project path="hardware/interfaces" name="android_hardware_interfaces" remote="omnirom" revision="android-8.1" />
-  <project path="hardware/invensense" name="android_hardware_invensense" remote="omnirom" revision="android-8.1" />
-  <project path="hardware/libhardware" name="android_hardware_libhardware" remote="omnirom" revision="android-8.1" />
+  <project path="hardware/interfaces" name="android_hardware_interfaces" remote="omnirom" revision="android-9.0" />
+  <project path="hardware/invensense" name="android_hardware_invensense" remote="omnirom" revision="android-9.0" />
+  <project path="hardware/libhardware" name="android_hardware_libhardware" remote="omnirom" revision="android-9.0" />
   <project path="hardware/qcom/audio" name="android_hardware_qcom_audio" remote="omnirom" revision="android-8.1" />
   <project path="hardware/qcom/bt" name="android_hardware_qcom_bt" remote="omnirom" revision="android-8.1" />
   <project path="hardware/qcom/display" name="android_hardware_qcom_display" remote="omnirom" revision="android-8.1" />
   <project path="hardware/qcom/media" name="android_hardware_qcom_media" remote="omnirom" revision="android-8.1" />
   <project path="hardware/qcom/msm8998" name="android_hardware_qcom_msm8998" remote="omnirom" revision="android-8.1" />
   <project path="hardware/qcom/power" name="android_hardware_qcom_power" remote="omnirom" revision="android-8.1" />
-  <project path="hardware/qcom/wlan" name="android_hardware_qcom_wlan" remote="omnirom" revision="android-8.1" />
+  <project path="hardware/qcom/wlan" name="android_hardware_qcom_wlan" remote="omnirom" revision="android-9.0" />
 
-  <project path="packages/apps/Calendar" name="android_packages_apps_Calendar" remote="omnirom" revision="android-8.1" />
-  <project path="packages/apps/Contacts" name="android_packages_apps_Contacts" remote="omnirom" revision="android-8.1" />
-  <project path="packages/apps/CellBroadcastReceiver" name="android_packages_apps_CellBroadcastReceiver" remote="omnirom" revision="android-8.1" />
-  <project path="packages/apps/Dialer" name="android_packages_apps_Dialer" remote="omnirom" revision="android-8.1" />
-  <project path="packages/apps/EmergencyInfo" name="android_packages_apps_EmergencyInfo" remote="omnirom" revision="android-8.1" />
-  <project path="packages/apps/Launcher3" name="android_packages_apps_Launcher3" remote="omnirom" revision="android-8.1" />
-  <project path="packages/apps/Gallery2" name="android_packages_apps_Gallery2" remote="omnirom" revision="android-8.1" />
-  <project path="packages/apps/Messaging" name="android_packages_apps_Messaging" remote="omnirom" revision="android-8.1" />
-  <project path="packages/apps/MusicFX" name="android_packages_apps_MusicFX" remote="omnirom" revision="android-8.1" />
-  <project path="packages/apps/Nfc" name="android_packages_apps_Nfc" remote="omnirom" revision="android-8.1" />
-  <project path="packages/apps/PhoneCommon" name="android_packages_apps_PhoneCommon" remote="omnirom" revision="android-8.1" />
-  <project path="packages/apps/Settings" name="android_packages_apps_Settings" remote="omnirom" revision="android-8.1" />
-  <project path="packages/apps/Stk" name="android_packages_apps_Stk" remote="omnirom" revision="android-8.1" />
+  <project path="packages/apps/Calendar" name="android_packages_apps_Calendar" remote="omnirom" revision="android-9.0" />
+  <project path="packages/apps/Contacts" name="android_packages_apps_Contacts" remote="omnirom" revision="android-9.0" />
+  <project path="packages/apps/CellBroadcastReceiver" name="android_packages_apps_CellBroadcastReceiver" remote="omnirom" revision="android-9.0" />
+  <project path="packages/apps/Dialer" name="android_packages_apps_Dialer" remote="omnirom" revision="android-9.0" />
+  <project path="packages/apps/EmergencyInfo" name="android_packages_apps_EmergencyInfo" remote="omnirom" revision="android-9.0" />
+  <project path="packages/apps/Launcher3" name="android_packages_apps_Launcher3" remote="omnirom" revision="android-9.0" />
+  <project path="packages/apps/Gallery2" name="android_packages_apps_Gallery2" remote="omnirom" revision="android-9.0" />
+  <project path="packages/apps/Messaging" name="android_packages_apps_Messaging" remote="omnirom" revision="android-9.0" />
+  <project path="packages/apps/MusicFX" name="android_packages_apps_MusicFX" remote="omnirom" revision="android-9.0" />
+  <project path="packages/apps/Nfc" name="android_packages_apps_Nfc" remote="omnirom" revision="android-9.0" />
+  <project path="packages/apps/PhoneCommon" name="android_packages_apps_PhoneCommon" remote="omnirom" revision="android-9.0" />
+  <project path="packages/apps/Settings" name="android_packages_apps_Settings" remote="omnirom" revision="android-9.0" />
+  <project path="packages/apps/Stk" name="android_packages_apps_Stk" remote="omnirom" revision="android-9.0" />
 
-  <project path="packages/inputmethods/LatinIME" name="android_packages_inputmethods_LatinIME" remote="omnirom" revision="android-8.1" />
+  <project path="packages/inputmethods/LatinIME" name="android_packages_inputmethods_LatinIME" remote="omnirom" revision="android-9.0" />
 
-  <project path="packages/providers/DownloadProvider" name="android_packages_providers_DownloadProvider" remote="omnirom" revision="android-8.1" />
+  <project path="packages/providers/DownloadProvider" name="android_packages_providers_DownloadProvider" remote="omnirom" revision="android-9.0" />
 
-  <project path="packages/services/Telephony" name="android_packages_services_Telephony" remote="omnirom" revision="android-8.1" />
-  <project path="packages/services/Telecomm" name="android_packages_services_Telecomm" remote="omnirom" revision="android-8.1" />
+  <project path="packages/services/Telephony" name="android_packages_services_Telephony" remote="omnirom" revision="android-9.0" />
+  <project path="packages/services/Telecomm" name="android_packages_services_Telecomm" remote="omnirom" revision="android-9.0" />
 
-  <project path="system/bt" name="android_system_bt" remote="omnirom" revision="android-8.1" />
-  <project path="system/core" name="android_system_core" remote="omnirom" revision="android-8.1" />
-  <project path="system/extras" name="android_system_extras" remote="omnirom" revision="android-8.1" />
-  <project path="system/libhidl" name="android_system_libhidl" remote="omnirom" revision="android-8.1" />
-  <project path="system/media" name="android_system_media" remote="omnirom" revision="android-8.1" />
-  <project path="system/nfc" name="android_system_nfc" remote="omnirom" revision="android-8.1" />
-  <project path="system/netd" name="android_system_netd" remote="omnirom" revision="android-8.1" />
-  <project path="system/sepolicy" name="android_system_sepolicy" remote="omnirom" revision="android-8.1" />
-  <project path="system/vold" name="android_system_vold" remote="omnirom" revision="android-8.1" />
-  <project path="system/hardware/interfaces" name="android_system_hardware_interfaces" remote="omnirom" revision="android-8.1" />
-  <project path="system/update_engine" name="android_system_update_engine" remote="omnirom" revision="android-8.1" />
+  <project path="system/bt" name="android_system_bt" remote="omnirom" revision="android-9.0" />
+  <project path="system/core" name="android_system_core" remote="omnirom" revision="android-9.0" />
+  <project path="system/extras" name="android_system_extras" remote="omnirom" revision="android-9.0" />
+  <project path="system/libhidl" name="android_system_libhidl" remote="omnirom" revision="android-9.0" />
+  <project path="system/media" name="android_system_media" remote="omnirom" revision="android-9.0" />
+  <project path="system/nfc" name="android_system_nfc" remote="omnirom" revision="android-9.0" />
+  <project path="system/netd" name="android_system_netd" remote="omnirom" revision="android-9.0" />
+  <project path="system/sepolicy" name="android_system_sepolicy" remote="omnirom" revision="android-9.0" />
+  <project path="system/vold" name="android_system_vold" remote="omnirom" revision="android-9.0" />
+  <project path="system/hardware/interfaces" name="android_system_hardware_interfaces" remote="omnirom" revision="android-9.0" />
+  <project path="system/update_engine" name="android_system_update_engine" remote="omnirom" revision="android-9.0" />
 </manifest>
diff --git a/omni-default.xml b/omni-default.xml
index 307756c..0f044b6 100644
--- a/omni-default.xml
+++ b/omni-default.xml
@@ -11,25 +11,24 @@
   <include name="omni-caf.xml" />
 
   <!-- OmniROM Projects -->
-  <project path="android" name="android" remote="omnirom" revision="android-8.1" />
+  <project path="android" name="android" remote="omnirom" revision="android-9.0" />
 
-  <project path="vendor/omni" name="android_vendor_omni" remote="omnirom" revision="android-8.1" />
+  <project path="vendor/omni" name="android_vendor_omni" remote="omnirom" revision="android-9.0" />
 
   <project path="external/exfat" name="android_external_exfat" remote="omnirom" revision="android-8.1" />
   <project path="external/fuse" name="android_external_fuse" remote="omnirom" revision="android-8.0" />
   <project path="external/ntfs-3g" name="android_external_ntfs-3g" remote="omnirom" revision="android-8.1"/>
 
-  <project path="packages/apps/DSPManager" name="android_packages_apps_DSPManager" remote="omnirom" revision="android-8.1" />
-  <project path="packages/apps/Matlog" name="android_packages_apps_Matlog" remote="omnirom" revision="android-8.1" />
-  <project path="packages/apps/MonthCalendarWidget" name="android_packages_apps_MonthCalendarWidget" remote="omnirom" revision="android-8.1" />
-  <project path="packages/apps/OmniChange" name="android_packages_apps_OmniChange" remote="omnirom" revision="android-8.1" />
-  <project path="packages/apps/OmniClock" name="android_packages_apps_OmniClock" remote="omnirom" revision="android-8.1" />
+  <project path="packages/apps/Matlog" name="android_packages_apps_Matlog" remote="omnirom" revision="android-9.0" />
+  <project path="packages/apps/MonthCalendarWidget" name="android_packages_apps_MonthCalendarWidget" remote="omnirom" revision="android-9.0" />
+  <project path="packages/apps/OmniChange" name="android_packages_apps_OmniChange" remote="omnirom" revision="android-9.0" />
+  <project path="packages/apps/OmniClock" name="android_packages_apps_OmniClock" remote="omnirom" revision="android-9.0" />
   <project path="packages/apps/OmniGears" name="android_packages_apps_OmniGears" remote="omnirom" revision="android-8.1" />
-  <project path="packages/apps/OmniLib" name="android_packages_apps_OmniLib" remote="omnirom" revision="android-8.1" />
+  <project path="packages/apps/OmniLib" name="android_packages_apps_OmniLib" remote="omnirom" revision="android-9.0" />
   <project path="packages/apps/OmniBrain" name="android_packages_apps_OmniBrain" remote="omnirom" revision="android-8.1" />
-  <project path="packages/services/OmniJaws" name="android_packages_services_OmniJaws" remote="omnirom" revision="android-8.1" />
-  <project path="packages/apps/OmniStyle" name="android_packages_apps_OmniStyle" remote="omnirom" revision="android-8.1" />
-  <project path="packages/apps/OmniSwitch" name="android_packages_apps_OmniSwitch" remote="omnirom" revision="android-8.1" />
+  <project path="packages/services/OmniJaws" name="android_packages_services_OmniJaws" remote="omnirom" revision="android-9.0" />
+  <project path="packages/apps/OmniStyle" name="android_packages_apps_OmniStyle" remote="omnirom" revision="android-9.0" />
+  <project path="packages/apps/OmniSwitch" name="android_packages_apps_OmniSwitch" remote="omnirom" revision="android-9.0" />
   <project path="packages/apps/OpenDelta" name="android_packages_apps_OpenDelta" remote="omnirom" revision="android-8.1" />
-  <project path="packages/apps/Phonograph" name="android_packages_apps_Phonograph" remote="omnirom" revision="android-8.1" />
+  <project path="packages/apps/Phonograph" name="android_packages_apps_Phonograph" remote="omnirom" revision="android-9.0" />
 </manifest>