diff --git a/release/build_nomulus_for_env.sh b/release/build_nomulus_for_env.sh
index fc82ef811..2f9cabb53 100755
--- a/release/build_nomulus_for_env.sh
+++ b/release/build_nomulus_for_env.sh
@@ -34,6 +34,7 @@ gcs_prefix="storage.googleapis.com/domain-registry-maven-repository"
 # task. (See ./cloudbuild-nomulus.yaml, which calls this script in several
 # steps). If left at their default location, the caches will be lost after
 # each step.
+# Note: must be consistent with value in ./cloudbuild-nomulus.yaml
 export GRADLE_USER_HOME="./cloudbuild-caches"
 
 if [ "${environment}" == tool ]
diff --git a/release/cloudbuild-nomulus.yaml b/release/cloudbuild-nomulus.yaml
index 4bb4dd0ec..c2377f975 100644
--- a/release/cloudbuild-nomulus.yaml
+++ b/release/cloudbuild-nomulus.yaml
@@ -21,7 +21,15 @@ steps:
   args: ['mkdir', 'nomulus']
 # Run tests
 - name: 'gcr.io/${PROJECT_ID}/builder:latest'
-  args: ['./gradlew', 'test', '-PskipDockerIncompatibleTests=true']
+  # Set home for Gradle caches. Must be consistent with last step below
+  # and ./build_nomulus_for_env.sh
+  env: [ 'GRADLE_USER_HOME=./cloudbuild-caches' ]
+  args: ['./gradlew',
+         'test',
+         '-PskipDockerIncompatibleTests=true',
+         '-PmavenUrl=https://storage.googleapis.com/domain-registry-maven-repository/maven',
+         '-PpluginsUrl=https://storage.googleapis.com/domain-registry-maven-repository/plugins'
+        ]
 # Build the tool binary and image.
 - name: 'gcr.io/${PROJECT_ID}/builder:latest'
   args: ['release/build_nomulus_for_env.sh', 'tool', 'output']
@@ -70,6 +78,9 @@ steps:
 # server/schema compatibility tests.
 - name: 'gcr.io/${PROJECT_ID}/builder:latest'
   entrypoint: /bin/bash
+  # Set home for Gradle caches. Must be consistent with second step above
+  # and ./build_nomulus_for_env.sh
+  env: [ 'GRADLE_USER_HOME=./cloudbuild-caches' ]
   args:
   - -c
   - |