diff --git a/tests/ci/workflow_approve_rerun_lambda/app.py b/tests/ci/workflow_approve_rerun_lambda/app.py
index be5a3d2c5cc..9cea6db3da2 100644
--- a/tests/ci/workflow_approve_rerun_lambda/app.py
+++ b/tests/ci/workflow_approve_rerun_lambda/app.py
@@ -22,8 +22,12 @@ SUSPICIOUS_PATTERNS = [
     "release",
 ]
 
+# Number of retries for API calls.
 MAX_RETRY = 5
-MAX_WORKFLOW_RERUN = 7
+
+# Number of times a check can re-run as a whole.
+# It is needed, because we are using AWS "spot" instances, that are terminated very frequently.
+MAX_WORKFLOW_RERUN = 20
 
 WorkflowDescription = namedtuple(
     "WorkflowDescription",