diff --git a/Dockerfile b/Dockerfile
index 30623c6..ba4bca5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -19,7 +19,7 @@ RUN set -ex; \
     cd /tmp/flox/backend; \
     composer --no-cache install;
 
-FROM php:7.4.16-fpm-buster@sha256:67d3dba316f44f4092400871cb909f7c3eff454811b8d7064f93a1bf5fa82e47
+FROM php:7.4.18-fpm-buster@sha256:d38a11768b9caefa61b0e9e080236b70812cde4511bb4daef15a1f62323bdf23
 
 COPY --from=composer /tmp/flox /usr/share/flox
 COPY --from=supercronic /go/bin/supercronic /usr/local/bin/supercronic