diff --git a/charts/mastodon/Chart.lock b/charts/mastodon/Chart.lock
index 3976f6e46cfa4f1e2847277121030c5472678233..24a0b7d33b660075285cd91041a7a2e904ed4351 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: 18.0.4
-digest: sha256:209ca6817987c7915591197fa24467bd2b670cafea2fadb698250baf6fe15225
-generated: "2023-09-12T06:08:48.817910502Z"
+  version: 18.1.5
+digest: sha256:3b6e2a25a1fbf85156b91053b5f400e8ece2d5b98f250b82452b0394bc68d8fe
+generated: "2023-10-13T06:10:35.764396563Z"
diff --git a/charts/mastodon/Chart.yaml b/charts/mastodon/Chart.yaml
index 7bbc06143a5841458dfc4b760defb44362ef2957..91d0f5d8f06ea874c121b81b69e5173d63f0d772 100644
--- a/charts/mastodon/Chart.yaml
+++ b/charts/mastodon/Chart.yaml
@@ -32,6 +32,6 @@ dependencies:
     repository: https://raw.githubusercontent.com/bitnami/charts/archive-full-index/bitnami
     condition: postgresql.enabled
   - name: redis
-    version: 18.0.4
+    version: 18.1.5
     repository: https://raw.githubusercontent.com/bitnami/charts/archive-full-index/bitnami
     condition: redis.enabled
diff --git a/charts/mastodon/charts/redis-18.0.4.tgz b/charts/mastodon/charts/redis-18.0.4.tgz
deleted file mode 100644
index 9a523d50639fce6957cab1bac5727c1c167ed8d6..0000000000000000000000000000000000000000
Binary files a/charts/mastodon/charts/redis-18.0.4.tgz and /dev/null differ
diff --git a/charts/mastodon/charts/redis-18.1.5.tgz b/charts/mastodon/charts/redis-18.1.5.tgz
new file mode 100644
index 0000000000000000000000000000000000000000..7947aa24dbc8df26d79c7b87ca8bf2a0eb71369b
Binary files /dev/null and b/charts/mastodon/charts/redis-18.1.5.tgz differ
diff --git a/charts/nextcloud/Chart.lock b/charts/nextcloud/Chart.lock
index 0db20253e82b5404c0c5c845d8bfdaef313e1a8a..9850facc1d53f0b708e89b938423334a129efe3e 100644
--- a/charts/nextcloud/Chart.lock
+++ b/charts/nextcloud/Chart.lock
@@ -7,6 +7,6 @@ dependencies:
   version: 13.1.3
 - name: redis
   repository: https://charts.bitnami.com/bitnami
-  version: 18.0.4
-digest: sha256:a3b5d2ef50c1a9350d11f7407830414d5fd461a2ec155c3e1ecafa71689f4a94
-generated: "2023-09-12T06:08:10.228270857Z"
+  version: 18.1.5
+digest: sha256:b38fcde8d31b0be74158f04302a878e1436c1e635b2e883e9a04fb38873966e7
+generated: "2023-10-13T06:09:54.704082721Z"
diff --git a/charts/nextcloud/Chart.yaml b/charts/nextcloud/Chart.yaml
index 4a2f14cf0252cfd15c4ceb32e3720c6436799cb7..42a2b7592701152c656d1cf63f1956615f7360d1 100644
--- a/charts/nextcloud/Chart.yaml
+++ b/charts/nextcloud/Chart.yaml
@@ -28,6 +28,6 @@ dependencies:
   repository: https://charts.bitnami.com/bitnami
   condition: mariadb.enabled
 - name: redis
-  version: 18.0.4
+  version: 18.1.5
   repository: https://charts.bitnami.com/bitnami
   condition: redis.enabled
diff --git a/charts/nextcloud/charts/redis-18.0.4.tgz b/charts/nextcloud/charts/redis-18.0.4.tgz
deleted file mode 100644
index 9a523d50639fce6957cab1bac5727c1c167ed8d6..0000000000000000000000000000000000000000
Binary files a/charts/nextcloud/charts/redis-18.0.4.tgz and /dev/null differ
diff --git a/charts/nextcloud/charts/redis-18.1.5.tgz b/charts/nextcloud/charts/redis-18.1.5.tgz
new file mode 100644
index 0000000000000000000000000000000000000000..7947aa24dbc8df26d79c7b87ca8bf2a0eb71369b
Binary files /dev/null and b/charts/nextcloud/charts/redis-18.1.5.tgz differ