diff --git a/pre_build_hook b/pre_build_hook
index a67aaab..238b476 100755
--- a/pre_build_hook
+++ b/pre_build_hook
@@ -22,7 +22,7 @@ download_package http://mirrors.kernel.org/ubuntu/pool/main/p/pcsc-lite/libpcscl
     http://mirrors.kernel.org/ubuntu/pool/main/j/java-common/java-common_0.51_all.deb \
     http://security.ubuntu.com/ubuntu/pool/main/t/tzdata/tzdata-java_2015g-0ubuntu0.14.04_all.deb \
     http://security.ubuntu.com/ubuntu/pool/main/t/tzdata/tzdata_2015g-0ubuntu0.14.04_all.deb \
-    http://security.ubuntu.com/ubuntu/pool/main/c/ca-certificates/ca-certificates_20141019ubuntu0.14.04.1_all.deb \
+    http://security.ubuntu.com/ubuntu/pool/main/c/ca-certificates/ca-certificates_20160104ubuntu0.14.04.1_all.deb \
     http://mirrors.kernel.org/ubuntu/pool/main/c/ca-certificates-java/ca-certificates-java_20130815ubuntu1_all.deb \
     http://security.ubuntu.com/ubuntu/pool/main/o/openjdk-7/openjdk-7-jre-headless_7u95-2.6.4-0ubuntu0.14.04.1_amd64.deb \
     http://mirrors.kernel.org/ubuntu/pool/main/c/ca-certificates-java/ca-certificates-java_20130815ubuntu1_all.deb \