diff --git a/docker/tessera.Dockerfile b/docker/tessera.Dockerfile
index 2953d536b..f175ab73d 100644
--- a/docker/tessera.Dockerfile
+++ b/docker/tessera.Dockerfile
@@ -1,5 +1,5 @@
 # Create Tessera installation from pre-built .tar distributions
-FROM alpine:3.13 as extractor
+FROM alpine:3.20 as extractor
 
 COPY . /ctx/