diff --git a/dev/ci/setup-host b/dev/ci/setup-host
index 70c01ae360..91dca8867c 100755
--- a/dev/ci/setup-host
+++ b/dev/ci/setup-host
@@ -39,6 +39,13 @@ if [ "${GITHUB_ACTIONS:-false}" = "true" ]; then
             sudo security add-trusted-cert -d -r trustRoot -p codeSign -k /Library/Keychains/System.keychain "$PASSENGER_ROOT/dev/ci/Certificates.cer"
             security find-identity -p codesigning /Library/Keychains/System.keychain
             security find-identity -v -p codesigning /Library/Keychains/System.keychain
+            security find-certificate -a /Library/Keychains/System.keychain
+            security find-certificate -a -c "Developer" /Library/Keychains/System.keychain
+            sudo security import -A -k /Library/Keychains/System.keychain "$PASSENGER_ROOT/dev/ci/Certificates.cer"
+            security find-identity -p codesigning /Library/Keychains/System.keychain
+            security find-identity -v -p codesigning /Library/Keychains/System.keychain
+            security find-certificate -a /Library/Keychains/System.keychain
+            security find-certificate -a -c "Developer" /Library/Keychains/System.keychain
         fi
 
 	echo