diff --git a/.appveyor.yml b/.appveyor.yml
index af4ec165c..e092e41f9 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -116,6 +116,7 @@ for:
     - SET PATH=C:\sbt\sbt\bin;%PATH%
     - SET JAVA_HOME=C:\jdk8
     - gu install native-image
+    - rm .sbtopts
 
   cache:
     - '%USERPROFILE%\.ivy2\cache'
@@ -148,6 +149,7 @@ for:
         }
     - SET PATH=C:\sbt\sbt\bin;%PATH%
     - SET SBT_OPTS=-Xmx4g -Dsbt.supershell=never -Dfile.encoding=UTF8
+    - rm .sbtopts
 
   cache:
     - '%USERPROFILE%\.ivy2\cache'
diff --git a/.sbtopts b/.sbtopts
new file mode 100644
index 000000000..1ca6d0b39
--- /dev/null
+++ b/.sbtopts
@@ -0,0 +1 @@
+-J-Xmx2G