diff --git a/Dockerfile b/Dockerfile
index 237d66c..c5b7c8b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM docker.io/alpine:3.15.2
+FROM docker.io/alpine:3.15.3
 
 # nftables + dependencies add 2.3MB to image
 ARG TOR_PACKAGE_VERSION=0.4.6.9-r0