diff --git a/Userland/Libraries/LibWeb/Cookie/ParsedCookie.cpp b/Userland/Libraries/LibWeb/Cookie/ParsedCookie.cpp
index 79b4968199..594763afd2 100644
--- a/Userland/Libraries/LibWeb/Cookie/ParsedCookie.cpp
+++ b/Userland/Libraries/LibWeb/Cookie/ParsedCookie.cpp
@@ -29,7 +29,7 @@ static void on_http_only_attribute(ParsedCookie& parsed_cookie);
 static void on_same_site_attribute(ParsedCookie& parsed_cookie, StringView attribute_value);
 static Optional<UnixDateTime> parse_date_time(StringView date_string);
 
-Optional<ParsedCookie> parse_cookie(DeprecatedString const& cookie_string)
+Optional<ParsedCookie> parse_cookie(StringView cookie_string)
 {
     // https://tools.ietf.org/html/rfc6265#section-5.2
 
diff --git a/Userland/Libraries/LibWeb/Cookie/ParsedCookie.h b/Userland/Libraries/LibWeb/Cookie/ParsedCookie.h
index 1d47121daa..5ffb185fba 100644
--- a/Userland/Libraries/LibWeb/Cookie/ParsedCookie.h
+++ b/Userland/Libraries/LibWeb/Cookie/ParsedCookie.h
@@ -26,7 +26,7 @@ struct ParsedCookie {
     bool http_only_attribute_present { false };
 };
 
-Optional<ParsedCookie> parse_cookie(DeprecatedString const& cookie_string);
+Optional<ParsedCookie> parse_cookie(StringView cookie_string);
 
 }
 
diff --git a/Userland/Libraries/LibWeb/DOM/Document.cpp b/Userland/Libraries/LibWeb/DOM/Document.cpp
index f3e6a72967..1fbd23eba0 100644
--- a/Userland/Libraries/LibWeb/DOM/Document.cpp
+++ b/Userland/Libraries/LibWeb/DOM/Document.cpp
@@ -1967,7 +1967,7 @@ DeprecatedString Document::cookie(Cookie::Source source)
     return {};
 }
 
-void Document::set_cookie(DeprecatedString const& cookie_string, Cookie::Source source)
+void Document::set_cookie(StringView cookie_string, Cookie::Source source)
 {
     auto cookie = Cookie::parse_cookie(cookie_string);
     if (!cookie.has_value())
diff --git a/Userland/Libraries/LibWeb/DOM/Document.h b/Userland/Libraries/LibWeb/DOM/Document.h
index e262f1eb8f..75fad76b84 100644
--- a/Userland/Libraries/LibWeb/DOM/Document.h
+++ b/Userland/Libraries/LibWeb/DOM/Document.h
@@ -98,7 +98,7 @@ public:
     JS::GCPtr<Selection::Selection> get_selection() const;
 
     DeprecatedString cookie(Cookie::Source = Cookie::Source::NonHttp);
-    void set_cookie(DeprecatedString const&, Cookie::Source = Cookie::Source::NonHttp);
+    void set_cookie(StringView, Cookie::Source = Cookie::Source::NonHttp);
 
     DeprecatedString referrer() const;
     void set_referrer(DeprecatedString);