diff --git a/php-fpm/Dockerfile b/php-fpm/Dockerfile
index f5249240..e9cb6115 100644
--- a/php-fpm/Dockerfile
+++ b/php-fpm/Dockerfile
@@ -1012,6 +1012,7 @@ USER root
 ARG INSTALL_FFMPEG=false
 
 RUN if [ ${INSTALL_FFMPEG} = true ]; then \
+    apt-get update -y && \
     apt-get -y install ffmpeg \
 ;fi