diff --git a/framebuffers/xcb/xcb_framebuffer.cpp b/framebuffers/xcb/xcb_framebuffer.cpp
index 47ea993a..1dcd208c 100644
--- a/framebuffers/xcb/xcb_framebuffer.cpp
+++ b/framebuffers/xcb/xcb_framebuffer.cpp
@@ -605,7 +605,7 @@ QList<QRect> XCBFrameBuffer::modifiedTiles() {
         } else {
             // not using shared memory
             // will use just xcb_image_get() and copy pixels
-            for (const QRect& r : qAsConst(tiles)) {
+            for (const QRect& r : std::as_const(tiles)) {
                 // I did not find XGetSubImage() analog in XCB!!
                 // need function that copies pixels from one image to another
                 xcb_image_t *damagedImage = xcb_image_get(
diff --git a/krfb/rfbservermanager.cpp b/krfb/rfbservermanager.cpp
index 263c18d5..bf40b492 100644
--- a/krfb/rfbservermanager.cpp
+++ b/krfb/rfbservermanager.cpp
@@ -133,7 +133,7 @@ void RfbServerManager::init()
 
 void RfbServerManager::updateFrameBuffer()
 {
-    for (RfbServer *server : qAsConst(d->servers)) {
+    for (RfbServer *server : std::as_const(d->servers)) {
         server->updateFrameBuffer(d->fb->data(), d->fb->width(), d->fb->height(), d->fb->depth());
     }
 }
@@ -143,7 +143,7 @@ void RfbServerManager::updateScreens()
     QList<QRect> rects = d->fb->modifiedTiles();
     QPoint currentCursorPos = QCursor::pos();
 
-    for (RfbServer* server : qAsConst(d->servers)) {
+    for (RfbServer* server : std::as_const(d->servers)) {
         server->updateScreen(rects);
         server->updateCursorPosition(currentCursorPos);
     }