diff --git a/dockerfiles/packagecloud-pruner/Dockerfile b/dockerfiles/packagecloud-pruner/Dockerfile
index 2b9a468..481bd8a 100644
--- a/dockerfiles/packagecloud-pruner/Dockerfile
+++ b/dockerfiles/packagecloud-pruner/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.14.1
+FROM alpine:3.21.1
 
 LABEL name="sensu/sensu-release" \
       maintainer="engineering@sensu.io"