diff --git a/authenticator.cpp b/authenticator.cpp
index ee355fa..6c37fcb 100644
--- a/authenticator.cpp
+++ b/authenticator.cpp
@@ -21,7 +21,7 @@ Authenticator::Authenticator(UserDao &userDao)
 // TODO: make failure counter configurable
 bool Authenticator::isBanned(std::string ip)
 {
-	if(utils::hasKey(loginFails, ip))
+	if(loginFails.contains(ip))
 	{
 		LoginFail &fl = loginFails[ip];
 		std::lock_guard<std::mutex> lock(fl.mutex);
diff --git a/utils.h b/utils.h
index 4e08569..cbe71c8 100644
--- a/utils.h
+++ b/utils.h
@@ -20,12 +20,6 @@ std::string strreplace(std::string str, const std::string &search, const std::st
 std::string html_xss(std::string_view str);
 std::string getenv(const std::string &key);
 
-template <class T, class U> bool hasKey(const std::map<T, U> &map, const T &key)
-{
-	auto k = map.find(key);
-	return k != map.end();
-}
-
 template <class T, class U> U getKeyOrEmpty(const std::map<T, U> &map, const T &key)
 {
 	auto k = map.find(key);
diff --git a/varreplacer.cpp b/varreplacer.cpp
index beb2a44..98bc9b0 100644
--- a/varreplacer.cpp
+++ b/varreplacer.cpp
@@ -60,12 +60,12 @@ std::string Varreplacer::makeReplacement(std::string_view varkeyvalue)
 	std::string_view value;
 
 	std::tie(key, value) = extractKeyAndValue(varkeyvalue);
-	if(utils::hasKey(keyValues, key))
+	if(keyValues.contains(key))
 	{
 		std::string replacementContent = keyValues[key];
 		return replacementContent;
 	}
-	else if(utils::hasKey(resolverFunctionsMap, key))
+	else if(resolverFunctionsMap.contains(key))
 	{
 
 		auto resolver = this->resolverFunctionsMap[key];