diff --git a/pkgs/development/libraries/qt-6/default.nix b/pkgs/development/libraries/qt-6/default.nix
index 96741ee8ae67..6604596fe468 100644
--- a/pkgs/development/libraries/qt-6/default.nix
+++ b/pkgs/development/libraries/qt-6/default.nix
@@ -203,10 +203,8 @@ let
           } ./hooks/qmake-hook.sh)
         { };
     } // lib.optionalAttrs config.allowAliases {
-      # Convert to a throw on 03-01-2023 and backport the change.
-      # Warnings show up in various cli tool outputs, throws do not.
-      # Remove completely before 24.05
-      overrideScope' = lib.warnIf (lib.isInOldestRelease 2311) "qt6 now uses makeScopeWithSplicing which does not have \"overrideScope'\", use \"overrideScope\"." self.overrideScope;
+      # Remove completely before 24.11
+      overrideScope' = builtins.throw "qt6 now uses makeScopeWithSplicing which does not have \"overrideScope'\", use \"overrideScope\".";
     };
 
   baseScope = makeScopeWithSplicing' {
diff --git a/pkgs/top-level/qt5-packages.nix b/pkgs/top-level/qt5-packages.nix
index 791df02b6998..331c97d5a4d3 100644
--- a/pkgs/top-level/qt5-packages.nix
+++ b/pkgs/top-level/qt5-packages.nix
@@ -293,9 +293,7 @@ in (noExtraAttrs (kdeFrameworks // plasmaMobileGear // plasma5 // plasma5.thirdP
 
   yuview = callPackage ../applications/video/yuview { };
 }) // lib.optionalAttrs pkgs.config.allowAliases {
-  # Convert to a throw on 01-01-2023.
-  # Warnings show up in various cli tool outputs, throws do not.
-  # Remove completely before 24.05
-  overrideScope' = lib.warn "libsForQt5 now uses makeScopeWithSplicing which does not have \"overrideScope'\", use \"overrideScope\"." self.overrideScope;
+  # Remove completely before 24.11
+  overrideScope' = builtins.throw "libsForQt5 now uses makeScopeWithSplicing which does not have \"overrideScope'\", use \"overrideScope\".";
 }));
 }
diff --git a/pkgs/top-level/qt6-packages.nix b/pkgs/top-level/qt6-packages.nix
index eb04beaef279..aab679783224 100644
--- a/pkgs/top-level/qt6-packages.nix
+++ b/pkgs/top-level/qt6-packages.nix
@@ -115,9 +115,7 @@ makeScopeWithSplicing' {
   wayqt = callPackage ../development/libraries/wayqt { };
 
   } // lib.optionalAttrs pkgs.config.allowAliases {
-    # Convert to a throw on 01-01-2023.
-    # Warnings show up in various cli tool outputs, throws do not.
-    # Remove completely before 24.05
-    overrideScope' = lib.warn "qt6Packages now uses makeScopeWithSplicing which does not have \"overrideScope'\", use \"overrideScope\"." self.overrideScope;
+    # Remove completely before 24.11
+    overrideScope' = builtins.throw "qt6Packages now uses makeScopeWithSplicing which does not have \"overrideScope'\", use \"overrideScope\".";
   });
 }