diff --git a/drupalci.yml b/drupalci.yml
index d20f473..ea092b3 100644
--- a/drupalci.yml
+++ b/drupalci.yml
@@ -10,10 +10,10 @@ build:
       run_tests.standard:
         types: 'Simpletest,PHPUnit-Unit,PHPUnit-Kernel,PHPUnit-Functional'
         # Test for Drupal 9 compatibility
-        suppress-deprecations: false
+        suppress-deprecations: true
       run_tests.js:
         concurrency: 1
         types: 'PHPUnit-FunctionalJavascript'
         # Test for Drupal 9 compatibility
-        suppress-deprecations: false
+        suppress-deprecations: true
       nightwatchjs: