diff --git a/http/http_request.hpp b/http/http_request.hpp
index d203077..405db87 100644
--- a/http/http_request.hpp
+++ b/http/http_request.hpp
@@ -92,7 +92,7 @@
         return req.target();
     }
 
-    bool target(const std::string_view target)
+    bool target(std::string_view target)
     {
         req.target(target);
         return setUrlInfo();
diff --git a/http/http_response.hpp b/http/http_response.hpp
index f9204e4..5cbdb28 100644
--- a/http/http_response.hpp
+++ b/http/http_response.hpp
@@ -27,7 +27,7 @@
 
     nlohmann::json jsonValue;
 
-    void addHeader(const std::string_view key, const std::string_view value)
+    void addHeader(std::string_view key, std::string_view value)
     {
         stringResponse->set(key, value);
     }
diff --git a/http/routing.hpp b/http/routing.hpp
index 5b3ddfe..ae63f05 100644
--- a/http/routing.hpp
+++ b/http/routing.hpp
@@ -422,7 +422,7 @@
         return *p;
     }
 
-    self_t& name(const std::string_view name) noexcept
+    self_t& name(std::string_view name) noexcept
     {
         self_t* self = static_cast<self_t*>(this);
         self->nameStr = name;
@@ -663,7 +663,7 @@
     }
 
     template <typename Func>
-    void operator()(const std::string_view name, Func&& f)
+    void operator()(std::string_view name, Func&& f)
     {
         nameStr = name;
         (*this).template operator()<Func>(std::forward(f));
@@ -807,7 +807,7 @@
     }
 
     std::pair<unsigned, RoutingParams>
-        find(const std::string_view reqUrl, const Node* node = nullptr,
+        find(std::string_view reqUrl, const Node* node = nullptr,
              size_t pos = 0, RoutingParams* params = nullptr) const
     {
         RoutingParams empty;
diff --git a/http/utility.hpp b/http/utility.hpp
index 4ea44d5..71f39c8 100644
--- a/http/utility.hpp
+++ b/http/utility.hpp
@@ -378,7 +378,7 @@
     using arg = std::tuple_element_t<i, boost::callable_traits::args_t<T>>;
 };
 
-inline std::string base64encode(const std::string_view data)
+inline std::string base64encode(std::string_view data)
 {
     const std::array<char, 64> key = {
         'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
@@ -438,7 +438,7 @@
 
 // TODO this is temporary and should be deleted once base64 is refactored out of
 // crow
-inline bool base64Decode(const std::string_view input, std::string& output)
+inline bool base64Decode(std::string_view input, std::string& output)
 {
     static const char nop = static_cast<char>(-1);
     // See note on encoding_data[] in above function
@@ -541,8 +541,7 @@
     return true;
 }
 
-inline bool constantTimeStringCompare(const std::string_view a,
-                                      const std::string_view b)
+inline bool constantTimeStringCompare(std::string_view a, std::string_view b)
 {
     // Important note, this function is ONLY constant time if the two input
     // sizes are the same
@@ -555,7 +554,7 @@
 
 struct ConstantTimeCompare
 {
-    bool operator()(const std::string_view a, const std::string_view b) const
+    bool operator()(std::string_view a, std::string_view b) const
     {
         return constantTimeStringCompare(a, b);
     }
@@ -567,7 +566,7 @@
     appendUrlPieces(boost::urls::url& url,
                     const std::initializer_list<std::string_view> args)
 {
-    for (const std::string_view& arg : args)
+    for (std::string_view arg : args)
     {
         url.segments().push_back(arg);
     }
@@ -696,7 +695,7 @@
 
 inline boost::urls::url replaceUrlSegment(const boost::urls::url_view& urlView,
                                           const uint replaceLoc,
-                                          const std::string_view newSegment)
+                                          std::string_view newSegment)
 {
     const boost::urls::segments_view& urlSegments = urlView.segments();
     boost::urls::url url("/");
diff --git a/http/websocket.hpp b/http/websocket.hpp
index 0ab13f2..c36e579 100644
--- a/http/websocket.hpp
+++ b/http/websocket.hpp
@@ -148,7 +148,7 @@
         });
     }
 
-    void sendBinary(const std::string_view msg) override
+    void sendBinary(std::string_view msg) override
     {
         ws.binary(true);
         outBuffer.emplace_back(msg);
@@ -162,7 +162,7 @@
         doWrite();
     }
 
-    void sendText(const std::string_view msg) override
+    void sendText(std::string_view msg) override
     {
         ws.text(true);
         outBuffer.emplace_back(msg);
@@ -176,7 +176,7 @@
         doWrite();
     }
 
-    void close(const std::string_view msg) override
+    void close(std::string_view msg) override
     {
         ws.async_close(
             {boost::beast::websocket::close_code::normal, msg},