diff --git a/Dockerfile.osx b/Dockerfile.osx
index b9fdf069..aebd9591 100644
--- a/Dockerfile.osx
+++ b/Dockerfile.osx
@@ -26,7 +26,7 @@ RUN curl -fsSL -o /vbox.dmg http://download.virtualbox.org/virtualbox/$VBOX_VERS
 
 # Download the Docker parts
 
-ENV INSTALLER_VERSION 1.9.0a
+ENV INSTALLER_VERSION 1.9.0b
 ENV DOCKER_VERSION 1.9.0
 # RUN curl -fsSL -o /docker https://test.docker.com/builds/Darwin/x86_64/docker-$DOCKER_VERSION
 RUN curl -fsSL -o docker https://get.docker.com/builds/Darwin/x86_64/docker-$DOCKER_VERSION
diff --git a/Dockerfile.windows b/Dockerfile.windows
index 049535a0..cd3b7f93 100644
--- a/Dockerfile.windows
+++ b/Dockerfile.windows
@@ -17,7 +17,7 @@ RUN cd innosetup && \
     wine "./innounp.exe" -e "is-unicode.exe"
 
 # installer components
-ENV INSTALLER_VERSION 1.9.0a
+ENV INSTALLER_VERSION 1.9.0b
 ENV DOCKER_VERSION 1.9.0
 ENV DOCKER_MACHINE_VERSION 0.5.0
 ENV DOCKER_COMPOSE_VERSION 1.5.0