diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5ea40c32..a2fba287 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## master / unreleased
 
+* [DEPENDENCY] update memcached docker tag to v1.6.42 #631
+
 ## 3.3.0 / 2026-04-27
 
 * [FEATURE] Add a parquet labels cache. #621
diff --git a/README.md b/README.md
index d52ebad7..6535001f 100644
--- a/README.md
+++ b/README.md
@@ -397,7 +397,7 @@ Kubernetes: `^1.19.0-0`
 | memcached-blocks-index.​disableValidation | bool | `false` | Bypass validation of the memcached configuration in case a custom image is in use |
 | memcached-blocks-index.​enabled | bool | `true` | Enables support for block index caching |
 | memcached-blocks-index.​image.​repository | string | `"memcached"` |  |
-| memcached-blocks-index.​image.​tag | string | `"1.6.41"` |  |
+| memcached-blocks-index.​image.​tag | string | `"1.6.42"` |  |
 | memcached-blocks-index.​metrics.​enabled | bool | `true` |  |
 | memcached-blocks-index.​metrics.​image.​repository | string | `"prom/memcached-exporter"` |  |
 | memcached-blocks-index.​metrics.​image.​tag | string | `"v0.16.0"` |  |
@@ -411,7 +411,7 @@ Kubernetes: `^1.19.0-0`
 | memcached-blocks-metadata.​disableValidation | bool | `false` | Bypass validation of the memcached configuration in case a custom image is in use |
 | memcached-blocks-metadata.​enabled | bool | `true` | Enables support for block metadata caching |
 | memcached-blocks-metadata.​image.​repository | string | `"memcached"` |  |
-| memcached-blocks-metadata.​image.​tag | string | `"1.6.41"` |  |
+| memcached-blocks-metadata.​image.​tag | string | `"1.6.42"` |  |
 | memcached-blocks-metadata.​metrics.​enabled | bool | `true` |  |
 | memcached-blocks-metadata.​metrics.​image.​repository | string | `"prom/memcached-exporter"` |  |
 | memcached-blocks-metadata.​metrics.​image.​tag | string | `"v0.16.0"` |  |
@@ -425,7 +425,7 @@ Kubernetes: `^1.19.0-0`
 | memcached-blocks.​disableValidation | bool | `false` | Bypass validation of the memcached configuration in case a custom image is in use |
 | memcached-blocks.​enabled | bool | `true` | Enables support for block caching |
 | memcached-blocks.​image.​repository | string | `"memcached"` |  |
-| memcached-blocks.​image.​tag | string | `"1.6.41"` |  |
+| memcached-blocks.​image.​tag | string | `"1.6.42"` |  |
 | memcached-blocks.​metrics.​enabled | bool | `true` |  |
 | memcached-blocks.​metrics.​image.​repository | string | `"prom/memcached-exporter"` |  |
 | memcached-blocks.​metrics.​image.​tag | string | `"v0.16.0"` |  |
@@ -439,7 +439,7 @@ Kubernetes: `^1.19.0-0`
 | memcached-frontend.​disableValidation | bool | `false` | Bypass validation of the memcached configuration in case a custom image is in use |
 | memcached-frontend.​enabled | bool | `true` | Enables support for caching queries in the frontend |
 | memcached-frontend.​image.​repository | string | `"memcached"` |  |
-| memcached-frontend.​image.​tag | string | `"1.6.41"` |  |
+| memcached-frontend.​image.​tag | string | `"1.6.42"` |  |
 | memcached-frontend.​metrics.​enabled | bool | `true` |  |
 | memcached-frontend.​metrics.​image.​repository | string | `"prom/memcached-exporter"` |  |
 | memcached-frontend.​metrics.​image.​tag | string | `"v0.16.0"` |  |
@@ -453,7 +453,7 @@ Kubernetes: `^1.19.0-0`
 | memcached-parquet-labels.​disableValidation | bool | `false` | Bypass validation of the memcached configuration in case a custom image is in use |
 | memcached-parquet-labels.​enabled | bool | `false` | Enables support for parquet labels caching |
 | memcached-parquet-labels.​image.​repository | string | `"memcached"` |  |
-| memcached-parquet-labels.​image.​tag | string | `"1.6.41"` |  |
+| memcached-parquet-labels.​image.​tag | string | `"1.6.42"` |  |
 | memcached-parquet-labels.​metrics.​enabled | bool | `true` |  |
 | memcached-parquet-labels.​metrics.​image.​repository | string | `"prom/memcached-exporter"` |  |
 | memcached-parquet-labels.​metrics.​image.​tag | string | `"v0.16.0"` |  |
diff --git a/values.yaml b/values.yaml
index d0311391..1c9e0c19 100644
--- a/values.yaml
+++ b/values.yaml
@@ -1709,7 +1709,7 @@ memcached-frontend:
     - -m 1024
   image:
     repository: memcached
-    tag: "1.6.41"
+    tag: "1.6.42"
   metrics:
     enabled: true
     image:
@@ -1734,7 +1734,7 @@ memcached-blocks-index:
     - -m 1024
   image:
     repository: memcached
-    tag: "1.6.41"
+    tag: "1.6.42"
   metrics:
     enabled: true
     image:
@@ -1759,7 +1759,7 @@ memcached-blocks:
     - -m 1024
   image:
     repository: memcached
-    tag: "1.6.41"
+    tag: "1.6.42"
   metrics:
     enabled: true
     image:
@@ -1784,7 +1784,7 @@ memcached-blocks-metadata:
     - -m 1024
   image:
     repository: memcached
-    tag: "1.6.41"
+    tag: "1.6.42"
   metrics:
     enabled: true
     image:
@@ -1809,7 +1809,7 @@ memcached-parquet-labels:
     - -m 1024
   image:
     repository: memcached
-    tag: "1.6.41"
+    tag: "1.6.42"
   metrics:
     enabled: true
     image: