diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 2f381204e1..1167c3e4f7 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -47,6 +47,13 @@ variables:
   BIND_STRESS_TEST_OS: linux
   BIND_STRESS_TEST_ARCH: amd64
 
+# Allow all running CI jobs to be automatically canceled when a new
+# version of a branch is pushed.
+#
+# See: https://docs.gitlab.com/ee/ci/pipelines/settings.html#auto-cancel-redundant-pipelines
+default:
+  interruptible: true
+
 stages:
   - autoconf
   - precheck