diff --git a/circle.yml b/circle.yml
index 39740407..e1ed6bd9 100644
--- a/circle.yml
+++ b/circle.yml
@@ -14,6 +14,7 @@ machine:
     PATH: $PATH:$HOME/.local/bin
     CLOUDSDK_CORE_DISABLE_PROMPTS: 1
     STATE: /home/ubuntu/state.env
+    NUM_HOSTS: 10
     # Base name of VMs for integration tests:
     NAME: test-$CIRCLE_BUILD_NUM-$CIRCLE_NODE_INDEX
     TEST_VMS_SETUP_OUTPUT_FILE: $CIRCLE_ARTIFACTS/test_vms_setup_output.txt
diff --git a/test/run-integration-tests.sh b/test/run-integration-tests.sh
index 5b0c40c5..8d9a19e9 100755
--- a/test/run-integration-tests.sh
+++ b/test/run-integration-tests.sh
@@ -24,7 +24,7 @@ APP="weave-net"
 PROJECT="weave-net-tests" # Only used when PROVIDER is gcp, by tools/provisioning/config.sh.
 NAME=${NAME:-"$(whoami | sed -e 's/[\.\_]*//g' | cut -c 1-4)"}
 PROVIDER=${PROVIDER:-gcp} # Provision using provided provider, or Google Cloud Platform by default.
-NUM_HOSTS=${NUM_HOSTS:-10}
+NUM_HOSTS=${NUM_HOSTS:-3}
 PLAYBOOK=${PLAYBOOK:-setup_weave-net_test.yml}
 TESTS=${TESTS:-}
 RUNNER_ARGS=${RUNNER_ARGS:-""}