diff --git a/buildscripts/kokoro/android-interop.sh b/buildscripts/kokoro/android-interop.sh
index 43bad26f1ec..d97b883d8ef 100755
--- a/buildscripts/kokoro/android-interop.sh
+++ b/buildscripts/kokoro/android-interop.sh
@@ -7,7 +7,7 @@ set -exu -o pipefail
 
 cd github/grpc-java
 
-export GRADLE_OPTS=-Xmx512m
+export GRADLE_OPTS=-Xmx1024m
 export LDFLAGS=-L/tmp/protobuf/lib
 export CXXFLAGS=-I/tmp/protobuf/include
 export LD_LIBRARY_PATH=/tmp/protobuf/lib