--- a/DisplayCAL/config.py
+++ b/DisplayCAL/config.py
@@ -1563,7 +1563,7 @@ defaults = {
     "untethered.max_delta.chroma": 0.5,
     "untethered.min_delta": 1.5,
     "untethered.min_delta.lightness": 1.0,
-    "update_check": 1,
+    "update_check": 0,
     "use_fancy_progress": 1,
     "use_separate_lut_access": 0,
     "vrml.compress": 1,