diff --git a/README.md b/README.md
index b031c79..c1fd8e2 100644
--- a/README.md
+++ b/README.md
@@ -246,6 +246,7 @@ Once registered you can define the dockerfile to use with `-f Dockerfile.aarch64
 
 ## Versions
 
+* **01.04.21:** - Fix crontab during upgrade from php7.
 * **16.03.21:** - Rebase on the php8 nginx baseimage.
 * **25.02.21:** - Nginx default site config updated for v21 (existing users should delete `/config/nginx/site-confs/default` and restart the container).
 * **21.01.21:** - Fix php iconv (was breaking the mail addon). If installed, attempt to remove broken CODE Server app during startup.
diff --git a/readme-vars.yml b/readme-vars.yml
index 4080c0e..8651d12 100644
--- a/readme-vars.yml
+++ b/readme-vars.yml
@@ -75,6 +75,7 @@ app_setup_block: |
 
 # changelog
 changelogs:
+  - { date: "01.04.21:", desc: "Fix crontab during upgrade from php7." }
   - { date: "16.03.21:", desc: "Rebase on the php8 nginx baseimage." }
   - { date: "25.02.21:", desc: "Nginx default site config updated for v21 (existing users should delete `/config/nginx/site-confs/default` and restart the container)." }
   - { date: "21.01.21:", desc: "Fix php iconv (was breaking the mail addon). If installed, attempt to remove broken CODE Server app during startup." }
diff --git a/root/etc/cont-init.d/50-install b/root/etc/cont-init.d/50-install
index 075be36..2e41030 100644
--- a/root/etc/cont-init.d/50-install
+++ b/root/etc/cont-init.d/50-install
@@ -17,4 +17,5 @@ fi
 # set cronjob
 [[ ! -f /config/crontabs/root ]] && \
 	cp /defaults/root /config/crontabs/root
+sed -i 's|php7|php8|g' /config/crontabs/root
 cp /config/crontabs/root /etc/crontabs/root