diff --git a/Chart.lock b/Chart.lock
index ac519239..f63c975d 100644
--- a/Chart.lock
+++ b/Chart.lock
@@ -1,18 +1,18 @@
 dependencies:
 - name: memcached
   repository: https://charts.bitnami.com/bitnami
-  version: 6.14.0
+  version: 8.5.5
 - name: memcached
   repository: https://charts.bitnami.com/bitnami
-  version: 6.14.0
+  version: 8.5.5
 - name: memcached
   repository: https://charts.bitnami.com/bitnami
-  version: 6.14.0
+  version: 8.5.5
 - name: memcached
   repository: https://charts.bitnami.com/bitnami
-  version: 6.14.0
+  version: 8.5.5
 - name: memcached
   repository: https://charts.bitnami.com/bitnami
-  version: 6.14.0
-digest: sha256:af0c109667e9402918877431f9e269c447c030d398c8e1ade6f7a0171a856c8f
-generated: "2026-04-21T11:51:34.160601+09:00"
+  version: 8.5.5
+digest: sha256:2f88858eecb2a1d7a4631b879508190c46c9ffca2981cd7c61ebd1ec96b2ea7a
+generated: "2026-05-21T01:40:14.545679825Z"
diff --git a/Chart.yaml b/Chart.yaml
index 583033cc..0c06590a 100644
--- a/Chart.yaml
+++ b/Chart.yaml
@@ -18,26 +18,26 @@ sources:
 dependencies:
   - name: memcached
     alias: memcached-frontend
-    version: 6.14.0
+    version: 8.5.5
     repository: https://charts.bitnami.com/bitnami
     condition: memcached-frontend.enabled
   - name: memcached
     alias: memcached-blocks-index
-    version: 6.14.0
+    version: 8.5.5
     repository: https://charts.bitnami.com/bitnami
     condition: memcached-blocks-index.enabled
   - name: memcached
     alias: memcached-blocks
-    version: 6.14.0
+    version: 8.5.5
     repository: https://charts.bitnami.com/bitnami
     condition: memcached-blocks.enabled
   - name: memcached
     alias: memcached-blocks-metadata
-    version: 6.14.0
+    version: 8.5.5
     repository: https://charts.bitnami.com/bitnami
     condition: memcached-blocks-metadata.enabled
   - name: memcached
     alias: memcached-parquet-labels
-    version: 6.14.0
+    version: 8.5.5
     repository: https://charts.bitnami.com/bitnami
     condition: memcached-parquet-labels.enabled
diff --git a/README.md b/README.md
index 769beeb6..99589ccf 100644
--- a/README.md
+++ b/README.md
@@ -86,11 +86,11 @@ Kubernetes: `^1.19.0-0`
 
 | Repository | Name | Version |
 |------------|------|---------|
-| https://charts.bitnami.com/bitnami | memcached-frontend(memcached) | 6.14.0 |
-| https://charts.bitnami.com/bitnami | memcached-blocks-index(memcached) | 6.14.0 |
-| https://charts.bitnami.com/bitnami | memcached-blocks(memcached) | 6.14.0 |
-| https://charts.bitnami.com/bitnami | memcached-blocks-metadata(memcached) | 6.14.0 |
-| https://charts.bitnami.com/bitnami | memcached-parquet-labels(memcached) | 6.14.0 |
+| https://charts.bitnami.com/bitnami | memcached-frontend(memcached) | 8.5.5 |
+| https://charts.bitnami.com/bitnami | memcached-blocks-index(memcached) | 8.5.5 |
+| https://charts.bitnami.com/bitnami | memcached-blocks(memcached) | 8.5.5 |
+| https://charts.bitnami.com/bitnami | memcached-blocks-metadata(memcached) | 8.5.5 |
+| https://charts.bitnami.com/bitnami | memcached-parquet-labels(memcached) | 8.5.5 |
 
 ## Values