diff --git a/install/calibre-web-install.sh b/install/calibre-web-install.sh
index 7c7e85bdd..786a2b77c 100644
--- a/install/calibre-web-install.sh
+++ b/install/calibre-web-install.sh
@@ -18,6 +18,9 @@ $STD apt install -y \
   build-essential \
   python3 \
   python3-dev \
+  libldap2-dev \
+  libsasl2-dev \
+  libssl-dev \
   imagemagick \
   libpango-1.0-0 \
   libharfbuzz0b \