diff --git a/php-cs-fixer/Dockerfile b/php-cs-fixer/Dockerfile
index 2561bc5..1f07684 100644
--- a/php-cs-fixer/Dockerfile
+++ b/php-cs-fixer/Dockerfile
@@ -1,4 +1,4 @@
-FROM php:7.3.9-alpine
+FROM php:7.4.29-alpine
 
 LABEL io.whalebrew.name 'php-cs-fixer'
 LABEL io.whalebrew.config.working_dir '/project'
diff --git a/phpcbf/Dockerfile b/phpcbf/Dockerfile
index d79bd2e..dc61a42 100644
--- a/phpcbf/Dockerfile
+++ b/phpcbf/Dockerfile
@@ -1,4 +1,4 @@
-FROM php:7.3-alpine
+FROM php:7.4-alpine
 
 LABEL io.whalebrew.name 'phpcbf'
 LABEL io.whalebrew.config.working_dir '/workdir'