diff --git a/Dockerfile b/Dockerfile
index 0ccf878..5d6d950 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -19,7 +19,7 @@ RUN set -ex; \
     cd /tmp/flox/backend; \
     composer --no-cache install;
 
-FROM php:7.4.27-fpm-bullseye@sha256:89f487558afd63a5d73676e0bad86d030dcd2d3a3ab176f7a6c5af3650522ab7
+FROM php:8.1.2-fpm-bullseye@sha256:61c90e54f0d801a351c30679cb47215c10fe5f5941bb40169daafaedcbb972cf
 
 COPY --from=composer /tmp/flox /usr/share/flox
 COPY --from=supercronic /go/bin/supercronic /usr/local/bin/supercronic