diff --git a/lib/guice/BUCK b/lib/guice/BUCK
index 15038a9..7d27583 100644
--- a/lib/guice/BUCK
+++ b/lib/guice/BUCK
@@ -1,4 +1,4 @@
-VERSION = '4.0-beta'
+VERSION = '4.0-beta5'
 EXCLUDE = [
   'META-INF/DEPENDENCIES',
   'META-INF/LICENSE',
@@ -31,7 +31,7 @@
 maven_jar(
   name = 'guice_library',
   id = 'com.google.inject:guice:' + VERSION,
-  sha1 = 'a82be989679df08b66d48b42659a3ca2daaf1d5b',
+  sha1 = 'fdf5df843620978a6f2929fd56f719a20d713c2b',
   deps = [':aopalliance'],
   exclude_java_sources = True,
   exclude = EXCLUDE + [
@@ -44,7 +44,7 @@
 maven_jar(
   name = 'guice-assistedinject',
   id = 'com.google.inject.extensions:guice-assistedinject:' + VERSION,
-  sha1 = 'abd6511011a9e4b64e2ebb60caac2e1cd6cd19a1',
+  sha1 = '820f10e0650cd9ed2591f398937df50f330b147d',
   exclude = EXCLUDE,
 )