diff --git a/charts/substra-backend/README.md b/charts/substra-backend/README.md
index 719886f2b..5ff5d83cb 100644
--- a/charts/substra-backend/README.md
+++ b/charts/substra-backend/README.md
@@ -318,7 +318,7 @@ See [UPGRADE.md](https://github.com/Substra/substra-backend/blob/main/charts/sub
 | --------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------- |
 | `kaniko.image.registry`                 | Kaniko image registry                                                                                                                              | `gcr.io`                  |
 | `kaniko.image.repository`               | Kaniko image repository                                                                                                                            | `kaniko-project/executor` |
-| `kaniko.image.tag`                      | Kaniko image tag                                                                                                                                   | `v1.8.1`                  |
+| `kaniko.image.tag`                      | Kaniko image tag                                                                                                                                   | `v1.23.2`                 |
 | `kaniko.resources.requests.cpu`         | Kaniko container cpu request                                                                                                                       | `1000m`                   |
 | `kaniko.resources.requests.memory`      | Kaniko container memory request                                                                                                                    | `4Gi`                     |
 | `kaniko.resources.limits.memory`        | Kaniko container memory limit                                                                                                                      | `32Gi`                    |
@@ -326,7 +326,7 @@ See [UPGRADE.md](https://github.com/Substra/substra-backend/blob/main/charts/sub
 | `kaniko.dockerConfigSecretName`         | A Docker config to use for pulling base images                                                                                                     | `nil`                     |
 | `kaniko.cache.warmer.image.registry`    | Kaniko cache warmer registry                                                                                                                       | `gcr.io`                  |
 | `kaniko.cache.warmer.image.repository`  | Kaniko cache warmer repository                                                                                                                     | `kaniko-project/warmer`   |
-| `kaniko.cache.warmer.image.tag`         | Kaniko cache warmer image tag                                                                                                                      | `v1.8.1`                  |
+| `kaniko.cache.warmer.image.tag`         | Kaniko cache warmer image tag                                                                                                                      | `v1.23.2`                 |
 | `kaniko.cache.warmer.cachedImages`      | A list of docker images to warmup the Kaniko cache                                                                                                 | `[]`                      |
 | `kaniko.cache.persistence.storageClass` | Specify the _StorageClass_ used to provision the volume. Or the default _StorageClass_ will be used. Set it to `-` to disable dynamic provisioning | `""`                      |
 | `kaniko.cache.persistence.size`         | The size of the volume.                                                                                                                            | `10Gi`                    |