diff --git a/README.md b/README.md
index 3c194ff2..73c3ab54 100644
--- a/README.md
+++ b/README.md
@@ -7,9 +7,9 @@ Mouseover Translate Any Language At Once - Chrome Extension
 
 download from [chrome web store](https://chrome.google.com/webstore/detail/mouse-tooltip-translator/hmigninkgibhdckiaphhmbgcghochdjc?hl=en) and [Edge Extension store](https://microsoftedge.microsoft.com/addons/detail/mouse-tooltip-translator/nnodgmifnfgkolmakhcfkkbbjjcobhbl)
   
-[<img alt="chrome web store" height="50px" src="doc/google.png" />](https://chrome.google.com/webstore/detail/mouse-tooltip-translator/hmigninkgibhdckiaphhmbgcghochdjc?hl=en)
-[<img alt="microsoft store" height="50px" src="doc/microsoft.png" />](https://microsoftedge.microsoft.com/addons/detail/mouse-tooltip-translator/nnodgmifnfgkolmakhcfkkbbjjcobhbl)
-[<img alt="softpedia" height="50px" src="doc/softpedia.png" />](https://www.softpedia.com/get/Internet/Internet-Applications-Addons/Chrome-Extensions/Mouse-Tooltip-Translator-for-Chrome.shtml)
+[<img alt="chrome web store" height="64px" src="doc/google.png" />](https://chrome.google.com/webstore/detail/mouse-tooltip-translator/hmigninkgibhdckiaphhmbgcghochdjc?hl=en)
+[<img alt="microsoft store" height="64px" src="doc/microsoft.png" />](https://microsoftedge.microsoft.com/addons/detail/mouse-tooltip-translator/nnodgmifnfgkolmakhcfkkbbjjcobhbl)
+[<img alt="softpedia" height="64px" src="doc/softpedia.png" />](https://www.softpedia.com/get/Internet/Internet-Applications-Addons/Chrome-Extensions/Mouse-Tooltip-Translator-for-Chrome.shtml)
 
 # Result