diff --git a/app/config.sh b/app/config.sh
index 5f3486bbb4..9a894f2d00 100644
--- a/app/config.sh
+++ b/app/config.sh
@@ -3,7 +3,7 @@ DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 # Version of Gecko to build with
 GECKO_VERSION_MAC="115.24.0esr"
 GECKO_VERSION_LINUX="115.24.0esr"
-GECKO_VERSION_WIN="115.24.0esr"
+GECKO_VERSION_WIN="115.14.0esr"
 RUST_VERSION=1.69.0
 
 # URL prefix for custom builds of Firefox components