diff --git a/environments/drupal-7.sh b/environments/drupal-7.sh
index b4262e1..ec1a70e 100644
--- a/environments/drupal-7.sh
+++ b/environments/drupal-7.sh
@@ -13,7 +13,7 @@ function drupal_ti_clear_caches() {
 	drush cc all
 }
 
-export DRUPAL_TI_DRUSH_VERSION="drush/drush:dev-master"
+export DRUPAL_TI_DRUSH_VERSION="drush/drush:8.*"
 export DRUPAL_TI_SIMPLETEST_FILE="scripts/run-tests.sh"
 export DRUPAL_TI_MODULES_PATH="sites/all/modules"
 export DRUPAL_TI_DRUPAL_BASE="$TRAVIS_BUILD_DIR/../drupal-7"
diff --git a/environments/drupal-8.sh b/environments/drupal-8.sh
index e62bf58..4b8f108 100644
--- a/environments/drupal-8.sh
+++ b/environments/drupal-8.sh
@@ -13,7 +13,7 @@ function drupal_ti_clear_caches() {
 	drush cr
 }
 
-export DRUPAL_TI_DRUSH_VERSION="drush/drush:dev-master"
+export DRUPAL_TI_DRUSH_VERSION="drush/drush:8.*"
 export DRUPAL_TI_SIMPLETEST_FILE="core/scripts/run-tests.sh"
 export DRUPAL_TI_MODULES_PATH="modules"
 export DRUPAL_TI_DRUPAL_BASE="$TRAVIS_BUILD_DIR/../drupal-8"