update bazel-apt pin

Change-Id: I30313f489e7e12e6c0f99d46660dbff220f13fa2
diff --git a/WORKSPACE b/WORKSPACE
index 4ab0d8f..fb1d492 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -87,7 +87,7 @@
     name = "bazel_apt",
     package_prefix = "http://storage.googleapis.com/bazel-apt/",
     packages_gz_url = "http://storage.googleapis.com/bazel-apt/dists/stable/jdk1.8/binary-amd64/Packages.gz",
-    sha256 = "1bbbd6dcd8f5b4e354a7742b24983bfa997b31d7a02093783833b910197526f4",
+    sha256 = "aaf30f40b617ffd88f98c3b910d4aa15451a00c41359674e2e00a40da2e05160",
 )
 
 dpkg_src(
diff --git a/examples/debian8_clang/Dockerfile b/examples/debian8_clang/Dockerfile
index 4ddc620..881a76e 100644
--- a/examples/debian8_clang/Dockerfile
+++ b/examples/debian8_clang/Dockerfile
@@ -1,4 +1,4 @@
-FROM gcr.io/cloud-marketplace/google/clang-debian8:latest
+FROM gcr.io/cloud-marketplace/google/clang-debian8-fl:a7504a0482e8e7e76c5bddb4160403febe0290f21b1628f14ff90670271fbe5d
 
 # Install Bazel deps
 RUN apt-get update && yes | apt-get install -y \