diff --git a/.github/workflows/outdated.sh b/.github/workflows/outdated.sh
index 3d11acf..f452136 100755
--- a/.github/workflows/outdated.sh
+++ b/.github/workflows/outdated.sh
@@ -12,7 +12,8 @@ git config user.name "${GITHUB_ACTOR}"
 git config user.email "${GITHUB_ACTOR}@users.noreply.github.com"
 git checkout outdated || git checkout -b outdated
 
-if ! mix certdata --check-outdated; then
+mix certdata --check-outdated
+if [ $? -eq 100 ]; then
   mix certdata
 
   if [[ $(check_pr) == "" ]]; then
diff --git a/lib/mix/tasks/certdata.ex b/lib/mix/tasks/certdata.ex
index 656ecbd..3b01bf3 100644
--- a/lib/mix/tasks/certdata.ex
+++ b/lib/mix/tasks/certdata.ex
@@ -70,7 +70,9 @@ defmodule Mix.Tasks.Certdata do
     new_bundle = read_certificates_set(new_bundle)
 
     if not MapSet.equal?(old_bundle, new_bundle) do
-      Mix.raise("#{CAStore.file_path()} is outdated. Run \"mix certdata\" to update it.")
+      Mix.raise("#{CAStore.file_path()} is outdated. Run \"mix certdata\" to update it.",
+        exit_status: 100
+      )
     end
   end