diff --git a/Userland/Libraries/LibJS/Runtime/Intl/DateTimeFormatConstructor.cpp b/Userland/Libraries/LibJS/Runtime/Intl/DateTimeFormatConstructor.cpp
index 77d1f63de1..11dc78d27b 100644
--- a/Userland/Libraries/LibJS/Runtime/Intl/DateTimeFormatConstructor.cpp
+++ b/Userland/Libraries/LibJS/Runtime/Intl/DateTimeFormatConstructor.cpp
@@ -273,7 +273,7 @@ ThrowCompletionOr<NonnullGCPtr<DateTimeFormat>> create_date_time_format(VM& vm,
     PropertyKey const* explicit_format_component = nullptr;
 
     // 39. For each row of Table 6, except the header row, in table order, do
-    TRY(for_each_calendar_field(vm, format_options, [&](auto& option, auto const& property, auto const& values) -> ThrowCompletionOr<void> {
+    TRY(for_each_calendar_field(vm, format_options, [&](auto& option, PropertyKey const& property, auto const& values) -> ThrowCompletionOr<void> {
         using ValueType = typename RemoveReference<decltype(option)>::ValueType;
 
         // a. Let prop be the name given in the Property column of the row.
diff --git a/Userland/Libraries/LibWeb/WebDriver/Capabilities.cpp b/Userland/Libraries/LibWeb/WebDriver/Capabilities.cpp
index caad3524a2..415fcb227d 100644
--- a/Userland/Libraries/LibWeb/WebDriver/Capabilities.cpp
+++ b/Userland/Libraries/LibWeb/WebDriver/Capabilities.cpp
@@ -77,7 +77,7 @@ static ErrorOr<JsonObject, Error> validate_capabilities(JsonValue const& capabil
     JsonObject result;
 
     // 3. For each enumerable own property in capability, run the following substeps:
-    TRY(capability.as_object().try_for_each_member([&](auto const& name, auto const& value) -> ErrorOr<void, Error> {
+    TRY(capability.as_object().try_for_each_member([&](auto const& name, JsonValue const& value) -> ErrorOr<void, Error> {
         // a. Let name be the name of the property.
         // b. Let value be the result of getting a property named name from capability.
 
diff --git a/Userland/Services/RequestServer/ConnectionCache.h b/Userland/Services/RequestServer/ConnectionCache.h
index 76675b01da..ec42a2bf97 100644
--- a/Userland/Services/RequestServer/ConnectionCache.h
+++ b/Userland/Services/RequestServer/ConnectionCache.h
@@ -137,7 +137,7 @@ ErrorOr<void> recreate_socket_if_needed(T& connection, URL const& url)
 
     if (!connection.socket->is_open() || connection.socket->is_eof()) {
         // Create another socket for the connection.
-        auto set_socket = [&](auto socket) -> ErrorOr<void> {
+        auto set_socket = [&](NonnullOwnPtr<SocketStorageType>&& socket) -> ErrorOr<void> {
             connection.socket = TRY(Core::BufferedSocket<SocketStorageType>::create(move(socket)));
             return {};
         };