diff --git a/charts/mastodon/Chart.lock b/charts/mastodon/Chart.lock
index f9d7c50ea35accb51255d4e55d0847c9e07b5e5e..472dadb638b375e0cb36774fe9308da094872696 100644
--- a/charts/mastodon/Chart.lock
+++ b/charts/mastodon/Chart.lock
@@ -7,6 +7,6 @@ dependencies:
   version: 11.9.13
 - name: redis
   repository: https://raw.githubusercontent.com/bitnami/charts/archive-full-index/bitnami
-  version: 17.8.2
-digest: sha256:8558ad3bce29916721f13322e345daff2fe17c6c55c1187b7a92078d600060c6
-generated: "2023-03-19T06:15:21.243029746Z"
+  version: 17.8.6
+digest: sha256:b15ef1cc9a67ee8c8d82d8c5f320dc457db1727d4b2e45156dd1909317ccca54
+generated: "2023-03-20T06:08:20.948603464Z"
diff --git a/charts/mastodon/Chart.yaml b/charts/mastodon/Chart.yaml
index 5211b03b559db81dd03537c6f28a9f874fd2325f..e1c08b3b9f155519c42a83e4fc69955aaae75523 100644
--- a/charts/mastodon/Chart.yaml
+++ b/charts/mastodon/Chart.yaml
@@ -25,5 +25,5 @@ dependencies:
     repository: https://raw.githubusercontent.com/bitnami/charts/archive-full-index/bitnami
     condition: postgresql.enabled
   - name: redis
-    version: 17.8.2
+    version: 17.8.6
     repository: https://raw.githubusercontent.com/bitnami/charts/archive-full-index/bitnami
diff --git a/charts/mastodon/charts/redis-17.8.2.tgz b/charts/mastodon/charts/redis-17.8.2.tgz
deleted file mode 100644
index bf718c1ca4c720c9fb8d509ab5f0f92cb16ffcd7..0000000000000000000000000000000000000000
Binary files a/charts/mastodon/charts/redis-17.8.2.tgz and /dev/null differ
diff --git a/charts/mastodon/charts/redis-17.8.6.tgz b/charts/mastodon/charts/redis-17.8.6.tgz
new file mode 100644
index 0000000000000000000000000000000000000000..74abc76877544aadc9aebb408bb9d94a1f41e883
Binary files /dev/null and b/charts/mastodon/charts/redis-17.8.6.tgz differ