diff --git a/BUILDING.txt b/BUILDING.txt
index e7701a5bd4d..bf1172b0fc2 100644
--- a/BUILDING.txt
+++ b/BUILDING.txt
@@ -267,10 +267,10 @@ If the build process fails with an out of memory error, you should be able to fi
 it by increasing the memory used by maven which can be done via the environment
 variable MAVEN_OPTS.
 
-Here is an example setting to allocate between 256 MB and 1 GB of heap space to
+Here is an example setting to allocate between 256 MB and 1.5 GB of heap space to
 Maven
 
-export MAVEN_OPTS="-Xms256m -Xmx1g"
+export MAVEN_OPTS="-Xms256m -Xmx1536m"
 
 ----------------------------------------------------------------------------------
 
diff --git a/dev-support/docker/Dockerfile b/dev-support/docker/Dockerfile
index 79f587e3f6d..352be249633 100644
--- a/dev-support/docker/Dockerfile
+++ b/dev-support/docker/Dockerfile
@@ -132,7 +132,7 @@ RUN pip install python-dateutil
 ###
 # Avoid out of memory errors in builds
 ###
-ENV MAVEN_OPTS -Xms256m -Xmx512m
+ENV MAVEN_OPTS -Xms256m -Xmx1536m
 
 ###
 # Install node js tools for web UI frameowkr