diff --git a/b2g/config/emulator-l/sources.xml b/b2g/config/emulator-l/sources.xml
index fe2a10074adf..d51810c53482 100644
--- a/b2g/config/emulator-l/sources.xml
+++ b/b2g/config/emulator-l/sources.xml
@@ -12,7 +12,7 @@
   <!--original fetch url was https://git.mozilla.org/releases-->
   <remote fetch="https://git.mozilla.org/releases" name="mozillaorg"/>
   <!-- B2G specific things. -->
-  <project name="platform_build" path="build" remote="b2g" revision="61e82f99bb8bc78d52b5717e9a2481ec7267fa33">
+  <project name="platform_build" path="build" remote="b2g" revision="07c383a786f188904311a37f6062c2cb84c9b61d">
     <copyfile dest="Makefile" src="core/root.mk"/>
   </project>
   <project name="gaia" path="gaia" remote="mozillaorg" revision="ade1ef5249cfab921e00ed67b30f3d03c2e24b5e"/>
@@ -143,7 +143,7 @@
   <project name="device/generic/armv7-a-neon" path="device/generic/armv7-a-neon" revision="fe7df1bc8dd0fd71571505d7be1c31a4ad1e40fb"/>
   <project name="device_generic_goldfish" path="device/generic/goldfish" remote="b2g" revision="48132ec0b0dfe9fc29c7c3f0e799066be8999198"/>
   <!-- external/qemu for emulator-l need to be updated in bug-1121378 -->
-  <project name="platform_external_qemu" path="external/qemu" remote="b2g" revision="7639c5c496ffd207bb627f2a59b2c5203ae6fefc"/>
+  <project name="platform_external_qemu" path="external/qemu" remote="b2g" revision="85f91439c854061bda3c6228d98381ea8867170c"/>
   <project name="platform_external_wpa_supplicant_8" path="external/wpa_supplicant_8" remote="b2g" revision="cbda29a58abc4ea1f7f4611fe354ab67b606219d"/>
   <project name="platform/development" path="development" revision="0c51f6e0aa2ee57fcb75ec3b2ff6bf754cece63e"/>
   <project name="android-sdk" path="sdk" remote="b2g" revision="ff4190dc603f62a7caa48342aa268acf99863c5c"/>
diff --git a/b2g/config/nexus-5-l/sources.xml b/b2g/config/nexus-5-l/sources.xml
index 8f41582614f2..5a60fd9d253e 100644
--- a/b2g/config/nexus-5-l/sources.xml
+++ b/b2g/config/nexus-5-l/sources.xml
@@ -12,7 +12,7 @@
   <!--original fetch url was https://git.mozilla.org/releases-->
   <remote fetch="https://git.mozilla.org/releases" name="mozillaorg"/>
   <!-- B2G specific things. -->
-  <project name="platform_build" path="build" remote="b2g" revision="61e82f99bb8bc78d52b5717e9a2481ec7267fa33">
+  <project name="platform_build" path="build" remote="b2g" revision="07c383a786f188904311a37f6062c2cb84c9b61d">
     <copyfile dest="Makefile" src="core/root.mk"/>
   </project>
   <project name="gaia" path="gaia" remote="mozillaorg" revision="ade1ef5249cfab921e00ed67b30f3d03c2e24b5e"/>