diff --git a/docker/Dockerfile.admin b/docker/Dockerfile.admin
index f368197..0fcbeaa 100644
--- a/docker/Dockerfile.admin
+++ b/docker/Dockerfile.admin
@@ -25,7 +25,7 @@ RUN origin="$(printf '%s' "$VITE_API_URL" | sed -E 's|^(https?://[^/]+).*|\1|')"
     case "$origin" in http://*|https://*) ;; *) origin="";; esac; \
     sed -i "s|__API_ORIGIN__|$origin|g" /cfg/security-headers.conf
 
-FROM nginxinc/nginx-unprivileged:1.27-alpine AS runtime
+FROM nginxinc/nginx-unprivileged:1.31-alpine AS runtime
 COPY --from=config --chown=nginx:nginx /cfg/nginx.conf /etc/nginx/conf.d/default.conf
 COPY --from=config --chown=nginx:nginx /cfg/security-headers.conf /etc/nginx/snippets/security-headers.conf
 COPY --from=build --chown=nginx:nginx /app/dist /usr/share/nginx/html