diff --git a/Dockerfile b/Dockerfile
index d65db74..a527e66 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -16,7 +16,7 @@ RUN set -ex; \
     cd /flox/backend; \
     composer install;
 
-FROM php:7.3.19-fpm-buster@sha256:998f3dc664d570103af88044215b347bff77c43de95c52be1ebae0a0cfd08543
+FROM php:7.3.20-fpm-buster@sha256:80c7f7607d6117cb9625ca5aeea3ec21f5e576a922b2696c24a1835a44ef4643
 COPY --from=composer /flox /usr/share/flox
 RUN set -ex; \
     \