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--- a/README.md
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@@ -1,4 +1,3 @@
-
 	
 <!-- PROJECT LOGO -->
 <br />
@@ -63,7 +62,7 @@ The current release of the proton response files is based on:
 ### Validity ranges 
 
 Due to biases at the boundary of the RMF modeling, induced by features in the interpolation because of limited statistics in the simulation, the spectral analysis must be performed within the following intervals:
-* WFI: 1.5 - 12 keV
+* WFI: 1.5 - 11.5 keV
 * X-IFU: 1.5 - 7 keV (the limited upper energy threshold is due to the lower statistics achieved in the X-IFU Geant4 simulations because of the intrinsic lower soft proton induced background flux)