diff --git a/autopush/Chart.yaml b/autopush/Chart.yaml
index 38f20cf..2a9a2b0 100644
--- a/autopush/Chart.yaml
+++ b/autopush/Chart.yaml
@@ -12,6 +12,6 @@ maintainers:
 
 dependencies:
   - name: redis
-    version: "20.8.0"
+    version: "20.9.0"
     repository: "oci://docker.io/bitnamicharts"
     condition: redis.internal
diff --git a/matrix-synapse/Chart.yaml b/matrix-synapse/Chart.yaml
index 211c192..cb612be 100644
--- a/matrix-synapse/Chart.yaml
+++ b/matrix-synapse/Chart.yaml
@@ -17,6 +17,6 @@ dependencies:
     repository: "oci://docker.io/bitnamicharts"
     condition: postgresql.enabled
   - name: redis
-    version: "20.8.0"
+    version: "20.9.0"
     repository: "oci://docker.io/bitnamicharts"
     condition: redis.enabled
diff --git a/paperless-ngx/Chart.yaml b/paperless-ngx/Chart.yaml
index aa70bcd..18680af 100644
--- a/paperless-ngx/Chart.yaml
+++ b/paperless-ngx/Chart.yaml
@@ -26,6 +26,6 @@ dependencies:
     repository: "oci://docker.io/bitnamicharts"
     condition: postgresql.enabled
   - name: redis
-    version: "20.8.0"
+    version: "20.9.0"
     repository: "oci://docker.io/bitnamicharts"
     condition: redis.enabled
diff --git a/pretix/Chart.yaml b/pretix/Chart.yaml
index d556310..8d8b066 100644
--- a/pretix/Chart.yaml
+++ b/pretix/Chart.yaml
@@ -20,6 +20,6 @@ dependencies:
     repository: "oci://docker.io/bitnamicharts"
     condition: postgresql.enabled
   - name: redis
-    version: "20.8.0"
+    version: "20.9.0"
     repository: "oci://docker.io/bitnamicharts"
     condition: redis.enabled