diff --git a/viewshed-worker/Dockerfile b/viewshed-worker/Dockerfile
index f46baa1..cbc8914 100644
--- a/viewshed-worker/Dockerfile
+++ b/viewshed-worker/Dockerfile
@@ -1,4 +1,4 @@
-FROM ghcr.io/osgeo/gdal:ubuntu-full-3.13.2@sha256:de280a240ef4309e6fb64b943e0472e6098099b813a6b9ff0e182bc6976a3fdb
+FROM ghcr.io/osgeo/gdal:ubuntu-full-3.13.3@sha256:2dd0f81ef927ff4c3d4dbe4f73c029dc86d4073974c0564f8e196f6e1412e2e0
 
 WORKDIR /app