diff --git a/unittests/feed/SubscriptionManagerTests.cpp b/unittests/feed/SubscriptionManagerTests.cpp
index 41b67e08..e3b0c75e 100644
--- a/unittests/feed/SubscriptionManagerTests.cpp
+++ b/unittests/feed/SubscriptionManagerTests.cpp
@@ -39,9 +39,7 @@
 #include <ripple/protocol/Issue.h>
 #include <ripple/protocol/STObject.h>
 
-#include <chrono>
 #include <memory>
-#include <optional>
 #include <string>
 #include <thread>
 #include <vector>