diff --git a/README.md b/README.md
index eddf500..58c2cce 100644
--- a/README.md
+++ b/README.md
@@ -183,7 +183,6 @@ void clear();
 iterator erase(const_iterator iter);
 iterator erase(const_iterator first, const_iterator last);
 size_type erase(const key_type& key);
-template < typename K > size_type erase(const K& key);
 
 void swap(flat_set& other);
 ```
@@ -431,7 +430,6 @@ void clear();
 iterator erase(const_iterator iter);
 iterator erase(const_iterator first, const_iterator last);
 size_type erase(const key_type& key);
-template < typename K > size_type erase(const K& key);
 
 void swap(flat_map& other)
 ```
@@ -666,7 +664,6 @@ void clear();
 iterator erase(const_iterator iter);
 iterator erase(const_iterator first, const_iterator last);
 size_type erase(const key_type& key);
-template < typename K > size_type erase(const K& key);
 
 void swap(flat_multiset& other);
 ```
@@ -914,7 +911,6 @@ void clear();
 iterator erase(const_iterator iter);
 iterator erase(const_iterator first, const_iterator last);
 size_type erase(const key_type& key);
-template < typename K > size_type erase(const K& key);
 
 void swap(flat_multimap& other)
 ```
diff --git a/headers/flat.hpp/flat_map.hpp b/headers/flat.hpp/flat_map.hpp
index a6ddb38..fef0b96 100644
--- a/headers/flat.hpp/flat_map.hpp
+++ b/headers/flat.hpp/flat_map.hpp
@@ -358,17 +358,6 @@ namespace flat_hpp
                 : 0;
         }
 
-        template < typename K >
-        std::enable_if_t<
-            detail::is_transparent_v<Compare, K>,
-            size_type>
-        erase(const K& key) {
-            const const_iterator iter = find(key);
-            return iter != end()
-                ? (erase(iter), 1)
-                : 0;
-        }
-
         void swap(flat_map& other)
             noexcept(std::is_nothrow_swappable_v<base_type>
                 && std::is_nothrow_swappable_v<container_type>)
diff --git a/headers/flat.hpp/flat_multimap.hpp b/headers/flat.hpp/flat_multimap.hpp
index aeccbbf..2977061 100644
--- a/headers/flat.hpp/flat_multimap.hpp
+++ b/headers/flat.hpp/flat_multimap.hpp
@@ -354,17 +354,6 @@ namespace flat_hpp
             return r;
         }
 
-        template < typename K >
-        std::enable_if_t<
-            detail::is_transparent_v<Compare, K>,
-            size_type>
-        erase(const K& key) {
-            const auto p = equal_range(key);
-            size_type r = std::distance(p.first, p.second);
-            erase(p.first, p.second);
-            return r;
-        }
-
         void swap(flat_multimap& other)
             noexcept(std::is_nothrow_swappable_v<base_type>
                 && std::is_nothrow_swappable_v<container_type>)
diff --git a/headers/flat.hpp/flat_multiset.hpp b/headers/flat.hpp/flat_multiset.hpp
index 6fdd395..52f2531 100644
--- a/headers/flat.hpp/flat_multiset.hpp
+++ b/headers/flat.hpp/flat_multiset.hpp
@@ -281,17 +281,6 @@ namespace flat_hpp
             return r;
         }
 
-        template < typename K >
-        std::enable_if_t<
-            detail::is_transparent_v<Compare, K>,
-            size_type>
-        erase(const K& key) {
-            const auto p = equal_range(key);
-            size_type r = std::distance(p.first, p.second);
-            erase(p.first, p.second);
-            return r;
-        }
-
         void swap(flat_multiset& other)
             noexcept(std::is_nothrow_swappable_v<base_type>
                 && std::is_nothrow_swappable_v<container_type>)
diff --git a/headers/flat.hpp/flat_set.hpp b/headers/flat.hpp/flat_set.hpp
index 21e06ab..aacd2e9 100644
--- a/headers/flat.hpp/flat_set.hpp
+++ b/headers/flat.hpp/flat_set.hpp
@@ -285,17 +285,6 @@ namespace flat_hpp
                 : 0;
         }
 
-        template < typename K >
-        std::enable_if_t<
-            detail::is_transparent_v<Compare, K>,
-            size_type>
-        erase(const K& key) {
-            const const_iterator iter = find(key);
-            return iter != end()
-                ? (erase(iter), 1)
-                : 0;
-        }
-
         void swap(flat_set& other)
             noexcept(std::is_nothrow_swappable_v<base_type>
                 && std::is_nothrow_swappable_v<container_type>)
diff --git a/untests/flat_map_tests.cpp b/untests/flat_map_tests.cpp
index 45fbd38..b0c2c6c 100644
--- a/untests/flat_map_tests.cpp
+++ b/untests/flat_map_tests.cpp
@@ -424,7 +424,6 @@ TEST_CASE("flat_map") {
         REQUIRE(s0.upper_bound(std::string_view("hello")) == s0.begin() + 1);
         REQUIRE(my_as_const(s0).upper_bound(std::string_view("hello")) == s0.begin() + 1);
 
-        REQUIRE(s0.erase(std::string_view("hello")) == 1);
         REQUIRE(s0.at(std::string_view("world")) == 84);
         REQUIRE(my_as_const(s0).at(std::string_view("world")) == 84);
     }
diff --git a/untests/flat_multimap_tests.cpp b/untests/flat_multimap_tests.cpp
index 0c9953a..d7f9dbe 100644
--- a/untests/flat_multimap_tests.cpp
+++ b/untests/flat_multimap_tests.cpp
@@ -426,7 +426,6 @@ TEST_CASE("flat_multimap") {
         REQUIRE(s0.upper_bound(std::string_view("hello")) == s0.begin() + 1);
         REQUIRE(my_as_const(s0).upper_bound(std::string_view("hello")) == s0.begin() + 1);
 
-        REQUIRE(s0.erase(std::string_view("hello")) == 1);
         REQUIRE(s0.at(std::string_view("world")) == 84);
         REQUIRE(my_as_const(s0).at(std::string_view("world")) == 84);
     }
diff --git a/untests/flat_multiset_tests.cpp b/untests/flat_multiset_tests.cpp
index 9e7833f..8864239 100644
--- a/untests/flat_multiset_tests.cpp
+++ b/untests/flat_multiset_tests.cpp
@@ -401,8 +401,6 @@ TEST_CASE("flat_multiset") {
 
         REQUIRE(s0.upper_bound(std::string_view("hello")) == s0.begin() + 1);
         REQUIRE(my_as_const(s0).upper_bound(std::string_view("hello")) == s0.begin() + 1);
-
-        REQUIRE(s0.erase(std::string_view("hello")) == 1);
     }
     SECTION("observers") {
         struct my_less {
diff --git a/untests/flat_set_tests.cpp b/untests/flat_set_tests.cpp
index 83dbd23..91c59f1 100644
--- a/untests/flat_set_tests.cpp
+++ b/untests/flat_set_tests.cpp
@@ -399,8 +399,6 @@ TEST_CASE("flat_set") {
 
         REQUIRE(s0.upper_bound(std::string_view("hello")) == s0.begin() + 1);
         REQUIRE(my_as_const(s0).upper_bound(std::string_view("hello")) == s0.begin() + 1);
-
-        REQUIRE(s0.erase(std::string_view("hello")) == 1);
     }
     SECTION("observers") {
         struct my_less {