diff --git a/include/yaml-cpp/node/ptr.h b/include/yaml-cpp/node/ptr.h
index 062d77e..f55d95e 100644
--- a/include/yaml-cpp/node/ptr.h
+++ b/include/yaml-cpp/node/ptr.h
@@ -7,7 +7,6 @@
 #pragma once
 #endif
 
-#include "yaml-cpp/dll.h"
 #include <memory>
 
 namespace YAML {
diff --git a/src/contrib/graphbuilderadapter.h b/src/contrib/graphbuilderadapter.h
index 9078cdf..c1cbcff 100644
--- a/src/contrib/graphbuilderadapter.h
+++ b/src/contrib/graphbuilderadapter.h
@@ -13,7 +13,6 @@
 
 #include "yaml-cpp/anchor.h"
 #include "yaml-cpp/contrib/anchordict.h"
-#include "yaml-cpp/contrib/graphbuilder.h"
 #include "yaml-cpp/emitterstyle.h"
 #include "yaml-cpp/eventhandler.h"
 
diff --git a/src/scanner.h b/src/scanner.h
index c653ac6..4af938e 100644
--- a/src/scanner.h
+++ b/src/scanner.h
@@ -9,9 +9,7 @@
 
 #include <cstddef>
 #include <ios>
-#include <map>
 #include <queue>
-#include <set>
 #include <stack>
 #include <string>