diff --git a/default.xml b/default.xml
index b8b1889..93eca25 100644
--- a/default.xml
+++ b/default.xml
@@ -4,7 +4,7 @@
   <remote  name="aosp"
            fetch="https://android.googlesource.com"
            review="https://android-review.googlesource.com/" />
-  <default revision="refs/tags/android-10.0.0_r29"
+  <default revision="refs/tags/android-10.0.0_r31"
            remote="aosp"
            sync-c="true"
            sync-j="12" />
@@ -757,6 +757,7 @@
   <project path="toolchain/pgo-profiles" name="toolchain/pgo-profiles" groups="pdk" />
   <project path="tools/acloud" name="platform/tools/acloud" groups="tools,vts,projectarch,pdk,tradefed" />
   <project path="tools/adt/idea" name="platform/tools/adt/idea" groups="notdefault,tools" />
+  <project path="tools/apifinder" name="platform/tools/apifinder" groups="pdk,tools" />
   <project path="tools/apksig" name="platform/tools/apksig" groups="pdk,tradefed" />
   <project path="tools/apkzlib" name="platform/tools/apkzlib" groups="pdk,tradefed" />
   <project path="tools/asuite" name="platform/tools/asuite" groups="pdk" />
@@ -781,7 +782,6 @@
   <project path="tools/tradefederation/core" name="platform/tools/tradefederation" groups="pdk,tradefed" />
   <project path="tools/tradefederation/contrib" name="platform/tools/tradefederation/contrib" groups="pdk,tradefed" />
   <project path="tools/trebuchet" name="platform/tools/trebuchet" groups="tools,cts,pdk,pdk-cw-fs,pdk-fs" />
-
   <repo-hooks in-project="platform/tools/repohooks" enabled-list="pre-upload" />
   <!-- OmniROM -->
   <include name="omni-default.xml" />