diff --git a/third_party/android_jar/lib-v26.tar.gz.sha1 b/third_party/android_jar/lib-v26.tar.gz.sha1
index 1972629..871a2d7 100644
--- a/third_party/android_jar/lib-v26.tar.gz.sha1
+++ b/third_party/android_jar/lib-v26.tar.gz.sha1
@@ -1 +1 @@
-5d2eda89f09e3288c0941172a54b18e533539e59
\ No newline at end of file
+408225469d2a8c8fe8de48c13e1b950ef9b46a1b
\ No newline at end of file
diff --git a/third_party/android_jar/lib-v27.tar.gz.sha1 b/third_party/android_jar/lib-v27.tar.gz.sha1
new file mode 100644
index 0000000..4fb438f
--- /dev/null
+++ b/third_party/android_jar/lib-v27.tar.gz.sha1
@@ -0,0 +1 @@
+f8f76728db3d49c598c9f3ba1b9504afdbfd2a50
\ No newline at end of file
diff --git a/third_party/android_jar/lib-v28.tar.gz.sha1 b/third_party/android_jar/lib-v28.tar.gz.sha1
new file mode 100644
index 0000000..c77f750
--- /dev/null
+++ b/third_party/android_jar/lib-v28.tar.gz.sha1
@@ -0,0 +1 @@
+9d36c3fbd06d9cab42933b20fe079e52a4e3677f
\ No newline at end of file
diff --git a/tools/toolhelper.py b/tools/toolhelper.py
index 532af6d..6a443ac 100644
--- a/tools/toolhelper.py
+++ b/tools/toolhelper.py
@@ -75,7 +75,7 @@
   args = []
   for arg in input_args:
     if arg == '--lib-android':
-      lib = utils.get_android_jar(26)
+      lib = utils.get_android_jar(28)
     elif arg == '--lib-java':
       lib = utils.RT_JAR
     else: