diff --git a/requirements-gui.txt b/requirements-gui.txt
index 63b4ce926..c53d03bf7 100644
--- a/requirements-gui.txt
+++ b/requirements-gui.txt
@@ -1,5 +1,6 @@
 --extra-index-url https://forge.frm2.tum.de/simple
 gr>=1.23.2
+gr==1.23.3;sys_platform=='darwin'
 python-redmine>=2.0.0
 
 # Linux: minimum versions of PyQt5
@@ -13,6 +14,8 @@ PyQtWebEngine>=5.15.5;sys_platform=='win32'
 QScintilla>=2.12;sys_platform=='win32'
 
 # Mac: Qt 6 is available for both arm64 and intel
-PyQt6>=6.3.1;sys_platform=='darwin'
-PyQt6-WebEngine>=6.3.1;sys_platform=='darwin'
+PyQt6>=6.7,<6.8;sys_platform=='darwin'
+PyQt6-Qt6>=6.7,<6.8;sys_platform=='darwin'
+PyQt6-WebEngine>=6.7,<6.8;sys_platform=='darwin'
+PyQt6-WebEngine-Qt6>=6.7,<6.8;sys_platform=='darwin'
 PyQt6-QScintilla>=2.13;sys_platform=='darwin'