diff --git a/include/boost/histogram/algorithm/project.hpp b/include/boost/histogram/algorithm/project.hpp
index 532392b8..47291082 100644
--- a/include/boost/histogram/algorithm/project.hpp
+++ b/include/boost/histogram/algorithm/project.hpp
@@ -8,7 +8,6 @@
 #define BOOST_HISTOGRAM_ALGORITHM_PROJECT_HPP
 
 #include <algorithm>
-#include <array>
 #include <boost/assert.hpp>
 #include <boost/histogram/detail/axes.hpp>
 #include <boost/histogram/detail/index_mapper.hpp>
diff --git a/include/boost/histogram/detail/axes.hpp b/include/boost/histogram/detail/axes.hpp
index 41a8254c..843c9084 100644
--- a/include/boost/histogram/detail/axes.hpp
+++ b/include/boost/histogram/detail/axes.hpp
@@ -8,7 +8,6 @@
 #define BOOST_HISTOGRAM_DETAIL_AXES_HPP
 
 #include <algorithm>
-#include <array>
 #include <boost/assert.hpp>
 #include <boost/histogram/axis/traits.hpp>
 #include <boost/histogram/axis/variant.hpp>
diff --git a/include/boost/histogram/storage_adaptor.hpp b/include/boost/histogram/storage_adaptor.hpp
index 86768cf3..344993f2 100644
--- a/include/boost/histogram/storage_adaptor.hpp
+++ b/include/boost/histogram/storage_adaptor.hpp
@@ -8,16 +8,13 @@
 #define BOOST_HISTOGRAM_STORAGE_ADAPTOR_HPP
 
 #include <algorithm>
-#include <array>
 #include <boost/assert.hpp>
 #include <boost/histogram/detail/cat.hpp>
 #include <boost/histogram/detail/meta.hpp>
 #include <boost/histogram/histogram_fwd.hpp>
 #include <boost/histogram/weight.hpp>
-#include <map>
 #include <stdexcept>
 #include <type_traits>
-#include <vector>
 
 // forward declaration for optional boost.accumulators support
 namespace boost {
diff --git a/test/histogram_dynamic_test.cpp b/test/histogram_dynamic_test.cpp
index 9000c2b2..2dcbf284 100644
--- a/test/histogram_dynamic_test.cpp
+++ b/test/histogram_dynamic_test.cpp
@@ -5,7 +5,6 @@
 // or copy at http://www.boost.org/LICENSE_1_0.txt)
 
 #include <algorithm>
-#include <array>
 #include <boost/core/lightweight_test.hpp>
 #include <boost/histogram/adaptive_storage.hpp>
 #include <boost/histogram/literals.hpp>
diff --git a/test/storage_adaptor_serialization_test.cpp b/test/storage_adaptor_serialization_test.cpp
index b05e9dfa..d4a386e1 100644
--- a/test/storage_adaptor_serialization_test.cpp
+++ b/test/storage_adaptor_serialization_test.cpp
@@ -44,8 +44,8 @@ void test_serialization() {
 
 int main() {
   test_serialization<std::vector<int>>();
-  // test_serialization<std::map<std::size_t, double>>();
-  // test_serialization<std::array<unsigned, 10>>();
+  test_serialization<std::map<std::size_t, double>>();
+  test_serialization<std::array<unsigned, 10>>();
 
   return boost::report_errors();
 }