diff --git a/Dockerfile b/Dockerfile
index 226877d3..881a502e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.7
+# syntax=docker/dockerfile:1.8
 ### Prepare for Runner ###
 # chrono::LocalDate requires TimeZone file
 FROM ubuntu:24.04 AS prepare-runner