diff --git a/test/chrono-test.cc b/test/chrono-test.cc
index 98b37000..4dee7c47 100644
--- a/test/chrono-test.cc
+++ b/test/chrono-test.cc
@@ -7,7 +7,6 @@
 
 #include "fmt/chrono.h"
 
-#include <algorithm>
 #include <ctime>
 #include <vector>
 
diff --git a/test/format-impl-test.cc b/test/format-impl-test.cc
index 0d906c4e..4259add3 100644
--- a/test/format-impl-test.cc
+++ b/test/format-impl-test.cc
@@ -5,7 +5,6 @@
 //
 // For the license information refer to format.h.
 
-#include <algorithm>
 #include <cstring>
 
 // clang-format off
diff --git a/test/format-test.cc b/test/format-test.cc
index f18f3172..cd07c26a 100644
--- a/test/format-test.cc
+++ b/test/format-test.cc
@@ -15,17 +15,16 @@
 
 #include <stdint.h>  // uint32_t
 
-#include <cfenv>               // fegetexceptflag and FE_ALL_EXCEPT
-#include <climits>             // INT_MAX
-#include <cmath>               // std::signbit
-#include <condition_variable>  // std::condition_variable
-#include <cstring>             // std::strlen
-#include <iterator>            // std::back_inserter
-#include <list>                // std::list
-#include <mutex>               // std::mutex
-#include <string>              // std::string
-#include <thread>              // std::thread
-#include <type_traits>         // std::is_default_constructible
+#include <cfenv>        // fegetexceptflag and FE_ALL_EXCEPT
+#include <climits>      // INT_MAX
+#include <cmath>        // std::signbit
+#include <cstring>      // std::strlen
+#include <iterator>     // std::back_inserter
+#include <list>         // std::list
+#include <mutex>        // std::mutex
+#include <string>       // std::string
+#include <thread>       // std::thread
+#include <type_traits>  // std::is_default_constructible
 #if FMT_CPLUSPLUS > 201703L && FMT_HAS_INCLUDE(<version>)
 #  include <version>
 #endif
diff --git a/test/gtest-extra-test.cc b/test/gtest-extra-test.cc
index 5c860400..8e4401b8 100644
--- a/test/gtest-extra-test.cc
+++ b/test/gtest-extra-test.cc
@@ -9,7 +9,6 @@
 
 #include <gtest/gtest-spi.h>
 
-#include <cstring>
 #include <memory>
 #include <stdexcept>
 
diff --git a/test/os-test.cc b/test/os-test.cc
index e789e87e..5ece0eb7 100644
--- a/test/os-test.cc
+++ b/test/os-test.cc
@@ -7,7 +7,6 @@
 
 #include "fmt/os.h"
 
-#include <cstdlib>  // std::exit
 #include <cstring>
 #include <memory>
 #include <thread>
diff --git a/test/printf-test.cc b/test/printf-test.cc
index 1b1f4f57..354143b9 100644
--- a/test/printf-test.cc
+++ b/test/printf-test.cc
@@ -9,7 +9,6 @@
 
 #include <cctype>
 #include <climits>
-#include <cstring>
 
 #include "fmt/xchar.h"  // DEPRECATED!
 #include "gtest-extra.h"
diff --git a/test/ranges-test.cc b/test/ranges-test.cc
index 0c2d771d..bd161d75 100644
--- a/test/ranges-test.cc
+++ b/test/ranges-test.cc
@@ -10,7 +10,6 @@
 #include <array>
 #include <list>
 #include <map>
-#include <numeric>
 #include <queue>
 #include <stack>
 #include <string>
diff --git a/test/scan-test.cc b/test/scan-test.cc
index d4f9e413..e0b7e2bc 100644
--- a/test/scan-test.cc
+++ b/test/scan-test.cc
@@ -7,8 +7,6 @@
 
 #include "scan.h"
 
-#include <time.h>
-
 #include <climits>
 #include <thread>
 
diff --git a/test/xchar-test.cc b/test/xchar-test.cc
index f6620ddf..ec82d425 100644
--- a/test/xchar-test.cc
+++ b/test/xchar-test.cc
@@ -7,9 +7,7 @@
 
 #include "fmt/xchar.h"
 
-#include <algorithm>
 #include <complex>
-#include <cwchar>
 #include <vector>
 
 #include "fmt/chrono.h"