diff --git a/include/nlohmann/json.hpp b/include/nlohmann/json.hpp
index f5b93632f..cac7805ac 100644
--- a/include/nlohmann/json.hpp
+++ b/include/nlohmann/json.hpp
@@ -4332,7 +4332,7 @@ class basic_json
 
     @complexity Constant.
 
-    @since version 3.x.x.
+    @since version 3.1.0.
     */
     iteration_proxy<iterator> items() noexcept
     {
diff --git a/single_include/nlohmann/json.hpp b/single_include/nlohmann/json.hpp
index 2921cba87..b5035f197 100644
--- a/single_include/nlohmann/json.hpp
+++ b/single_include/nlohmann/json.hpp
@@ -15088,7 +15088,7 @@ class basic_json
 
     @complexity Constant.
 
-    @since version 3.x.x.
+    @since version 3.1.0.
     */
     iteration_proxy<iterator> items() noexcept
     {