diff --git a/include/nlohmann/detail/json_pointer.hpp b/include/nlohmann/detail/json_pointer.hpp
index 41d022994..79776bcc6 100644
--- a/include/nlohmann/detail/json_pointer.hpp
+++ b/include/nlohmann/detail/json_pointer.hpp
@@ -78,6 +78,7 @@ class json_pointer
 
     /// @brief return a string representation of the JSON pointer
     /// @sa https://json.nlohmann.me/api/json_pointer/operator_string/
+    JSON_HEDLEY_DEPRECATED_FOR(3.11.0, to_string())
     operator string_t() const
     {
         return to_string();
diff --git a/single_include/nlohmann/json.hpp b/single_include/nlohmann/json.hpp
index b1efc7697..1d21f71b7 100644
--- a/single_include/nlohmann/json.hpp
+++ b/single_include/nlohmann/json.hpp
@@ -13526,6 +13526,7 @@ class json_pointer
 
     /// @brief return a string representation of the JSON pointer
     /// @sa https://json.nlohmann.me/api/json_pointer/operator_string/
+    JSON_HEDLEY_DEPRECATED_FOR(3.11.0, to_string())
     operator string_t() const
     {
         return to_string();