diff --git a/Dockerfile b/Dockerfile
index 0ee0e75..0353d41 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,7 +5,7 @@ FROM debian:buster-slim
 
 # Base utilities
 RUN apt-get update \
-    && apt-get install -yqq curl supervisor procps less zip unzip arj unrar-free lhasa arc logrotate cron php-cgi php-fpm \
+    && apt-get install -yqq curl supervisor procps less zip unzip arj unrar-free lhasa arc logrotate cron php-cgi php-fpm libnspr4 \
     && apt-get -y autoremove \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*