diff --git a/lib/xmet/sounding.py b/lib/xmet/sounding.py
index 8183740..23e972c 100644
--- a/lib/xmet/sounding.py
+++ b/lib/xmet/sounding.py
@@ -220,7 +220,7 @@ class SoundingParameters():
 
             gph_last = gph
 
-        return 9.80665 * cape
+        return 9.8076 * cape
 
     @staticmethod
     def from_sounding(sounding: Sounding) -> Self: