diff --git a/Brotli/Install-build-dependencies.sh b/Brotli/Install-build-dependencies.sh
index a30e2d9..daec9cc 100644
--- a/Brotli/Install-build-dependencies.sh
+++ b/Brotli/Install-build-dependencies.sh
@@ -6,7 +6,7 @@
 ##=============================================================
 
 #install Dependencies
-apt install -y curl gnupg dpkg-dev build-essential zlib1g-dev libpcre3 libpcre3-dev unzip git
+apt install -y curl gnupg dpkg-dev build-essential zlib1g-dev libpcre3 libpcre3-dev unzip apt-show-versions git
 
 #add repo
 curl -L https://nginx.org/keys/nginx_signing.key | apt-key add -