diff --git a/images/php-fpm/Dockerfile b/images/php-fpm/Dockerfile
index c98257a..43e57de 100644
--- a/images/php-fpm/Dockerfile
+++ b/images/php-fpm/Dockerfile
@@ -7,7 +7,8 @@ RUN install_packages lsb-release ca-certificates curl
 
 RUN curl -sSLo /usr/share/keyrings/deb.sury.org-php.gpg https://packages.sury.org/php/apt.gpg
 
-RUN sh -c 'echo "deb [signed-by=/usr/share/keyrings/deb.sury.org-php.gpg] https://packages.sury.org/php/ $(lsb_release -sc) main" > /etc/apt/sources.list.d/php.list'
+# Note that this is HTTP and not HTTPS because of apt-cacher-ng
+RUN sh -c 'echo "deb [signed-by=/usr/share/keyrings/deb.sury.org-php.gpg] http://packages.sury.org/php/ $(lsb_release -sc) main" > /etc/apt/sources.list.d/php.list'
 
 FROM ${REPO_LOCATION}minideb