diff --git a/packages/thunderbird.xml b/packages/thunderbird.xml
index fd95ded..7bb2881 100644
--- a/packages/thunderbird.xml
+++ b/packages/thunderbird.xml
@@ -2,11 +2,11 @@
 <packages>
     <package id="thunderbird"
              name="Mozilla Thunderbird"
-             revision="55"
+             revision="56"
              reboot="false"
              priority="10">
  
-        <variable name="PKG_VERSION" value="45.3.0" />
+        <variable name="PKG_VERSION" value="45.4.0" />
         <variable name="VARIANTE" value="" />
         <variable architecture="x86" name="INSTALL_PATH" value="%PROGRAMFILES%\Mozilla Thunderbird" />
         <variable architecture="x64" name="INSTALL_PATH" value="%PROGRAMFILES(x86)%\Mozilla Thunderbird" />
diff --git a/softwares/Thunderbird Setup 45.3.0.exe b/softwares/Thunderbird Setup 45.4.0.exe
similarity index 75%
rename from softwares/Thunderbird Setup 45.3.0.exe
rename to softwares/Thunderbird Setup 45.4.0.exe
index c62b84c..c4afecb 100644
Binary files a/softwares/Thunderbird Setup 45.3.0.exe and b/softwares/Thunderbird Setup 45.4.0.exe differ