diff --git a/charts/mastodon/Chart.lock b/charts/mastodon/Chart.lock
index 9dc3a884e61d59bb6416b4f9b038f37c7e3c248c..6c5718d6cf58bd5d6800de27f0b194d2b56b5aea 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: sha256:01c38e872292933e59991af47057d7e9bff8d25c1ba22612b97cff2e65c7bbf9
-generated: "2023-03-07T06:07:06.596527701Z"
+  version: 17.8.6
+digest: sha256:94e8d93b49c3907b608eea5c4ed229d0d732400e683d48d92cb4900e0d71184a
+generated: "2023-03-19T06:16:12.752991571Z"
diff --git a/charts/mastodon/Chart.yaml b/charts/mastodon/Chart.yaml
index dafd33919d37c2b1c2bcb18b79af9d0758f250f4..c8e1b3340a1b68b0bd21bbb535e64a1e8881346b 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