diff --git a/Dockerfile b/Dockerfile
index 8dd1e15ff915685e54905995ccdf0f9578ccb205..4c562bcf26e85e10615cdb21cc6d4b883ca658da 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,7 +8,7 @@
 FROM ubuntu:17.10
 MAINTAINER Jan Grewe <jan@faked.org>
 
-ENV VERSION_SDK_TOOLS "3859397"
+ENV VERSION_SDK_TOOLS "4333796"
 
 ENV ANDROID_HOME "/sdk"
 ENV PATH "$PATH:${ANDROID_HOME}/tools"
diff --git a/packages.txt b/packages.txt
index d51f56f00d31412f6479200a62b31a88b3826f0c..19d0490de000ccd1669417e1634cfc3fa31c55ad 100644
--- a/packages.txt
+++ b/packages.txt
@@ -1,9 +1,9 @@
 add-ons;addon-google_apis-google-24
-build-tools;26.0.2
+build-tools;27.0.3
 extras;android;m2repository
 extras;google;m2repository
 extras;google;google_play_services
-extras;m2repository;com;android;support;constraint;constraint-layout;1.0.2
-extras;m2repository;com;android;support;constraint;constraint-layout-solver;1.0.2
+extras;m2repository;com;android;support;constraint;constraint-layout;1.1.0
+extras;m2repository;com;android;support;constraint;constraint-layout-solver;1.1.0
 platform-tools
-platforms;android-26
+platforms;android-27