diff --git a/api-platform/externalsecret-kubernetes-client-v1.json b/api-platform/externalsecret-kubernetes-client-v1.json
new file mode 100644
index 0000000..00cca0f
--- /dev/null
+++ b/api-platform/externalsecret-kubernetes-client-v1.json
@@ -0,0 +1,273 @@
+{
+  "required": [
+    "spec"
+  ],
+  "type": "object",
+  "properties": {
+    "spec": {
+      "type": "object",
+      "properties": {
+        "controllerId": {
+          "description": "The ID of controller instance that manages this ExternalSecret. This is needed in case there is more than a KES controller instances within the cluster.",
+          "type": "string"
+        },
+        "type": {
+          "type": "string",
+          "description": "DEPRECATED: Use spec.template.type"
+        },
+        "template": {
+          "description": "Template which will be deep merged without mutating any existing fields. into generated secret, can be used to set for example annotations or type on the generated secret",
+          "type": "object",
+          "x-kubernetes-preserve-unknown-fields": true
+        },
+        "backendType": {
+          "description": "Determines which backend to use for fetching secrets",
+          "type": "string",
+          "enum": [
+            "secretsManager",
+            "systemManager",
+            "vault",
+            "azureKeyVault",
+            "gcpSecretsManager",
+            "alicloudSecretsManager",
+            "ibmcloudSecretsManager",
+            "akeyless"
+          ]
+        },
+        "vaultRole": {
+          "description": "Used by: vault",
+          "type": "string"
+        },
+        "vaultMountPoint": {
+          "description": "Used by: vault",
+          "type": "string"
+        },
+        "kvVersion": {
+          "description": "Vault K/V version either 1 or 2, default = 2",
+          "type": "integer",
+          "minimum": 1,
+          "maximum": 2
+        },
+        "keyVaultName": {
+          "description": "Used by: azureKeyVault",
+          "type": "string"
+        },
+        "dataFrom": {
+          "type": "array",
+          "items": {
+            "type": "string"
+          }
+        },
+        "dataFromWithOptions": {
+          "type": "array",
+          "items": {
+            "type": "object",
+            "properties": {
+              "key": {
+                "description": "Secret key in backend",
+                "type": "string"
+              },
+              "isBinary": {
+                "description": "Whether the backend secret shall be treated as binary data represented by a base64-encoded string. You must set this to true for any base64-encoded binary data in the backend - to ensure it is not encoded in base64 again. Default is false.",
+                "type": "boolean"
+              },
+              "versionStage": {
+                "description": "Used by: alicloudSecretsManager, secretsManager",
+                "type": "string"
+              },
+              "versionId": {
+                "description": "Used by: secretsManager",
+                "type": "string"
+              }
+            },
+            "required": [
+              "key"
+            ],
+            "additionalProperties": false
+          }
+        },
+        "data": {
+          "type": "array",
+          "items": {
+            "type": "object",
+            "properties": {
+              "key": {
+                "description": "Secret key in backend",
+                "type": "string"
+              },
+              "name": {
+                "description": "Name set for this key in the generated secret",
+                "type": "string"
+              },
+              "property": {
+                "description": "Property to extract if secret in backend is a JSON object",
+                "type": "string"
+              },
+              "isBinary": {
+                "description": "Whether the backend secret shall be treated as binary data represented by a base64-encoded string. You must set this to true for any base64-encoded binary data in the backend - to ensure it is not encoded in base64 again. Default is false.",
+                "type": "boolean"
+              },
+              "path": {
+                "description": "Path from SSM to scrape secrets This will fetch all secrets and use the key from the secret as variable name",
+                "type": "string"
+              },
+              "recursive": {
+                "description": "Allow to recurse thru all child keys on a given path, default false",
+                "type": "boolean"
+              },
+              "secretType": {
+                "description": "Used by: ibmcloudSecretsManager Type of secret - one of username_password, iam_credentials or arbitrary",
+                "type": "string"
+              },
+              "version": {
+                "description": "Used by: gcpSecretsManager",
+                "type": "string",
+                "x-kubernetes-int-or-string": true
+              },
+              "versionStage": {
+                "description": "Used by: alicloudSecretsManager, secretsManager",
+                "type": "string"
+              },
+              "versionId": {
+                "description": "Used by: secretsManager",
+                "type": "string"
+              }
+            },
+            "oneOf": [
+              {
+                "required": [
+                  "key",
+                  "name"
+                ]
+              },
+              {
+                "required": [
+                  "path"
+                ]
+              }
+            ],
+            "additionalProperties": false
+          }
+        },
+        "roleArn": {
+          "type": "string",
+          "description": "Used by: alicloudSecretsManager, secretsManager, systemManager"
+        },
+        "region": {
+          "type": "string",
+          "description": "Used by: secretsManager, systemManager"
+        },
+        "projectId": {
+          "type": "string",
+          "description": "Used by: gcpSecretsManager"
+        },
+        "keyByName": {
+          "type": "boolean",
+          "description": "Whether to interpret the key as a secret name (if true) or ID (the default). Used by: ibmcloudSecretsManager"
+        }
+      },
+      "oneOf": [
+        {
+          "properties": {
+            "backendType": {
+              "enum": [
+                "secretsManager",
+                "systemManager"
+              ]
+            }
+          }
+        },
+        {
+          "properties": {
+            "backendType": {
+              "enum": [
+                "vault"
+              ]
+            }
+          }
+        },
+        {
+          "properties": {
+            "backendType": {
+              "enum": [
+                "azureKeyVault"
+              ]
+            }
+          },
+          "required": [
+            "keyVaultName"
+          ]
+        },
+        {
+          "properties": {
+            "backendType": {
+              "enum": [
+                "gcpSecretsManager"
+              ]
+            }
+          }
+        },
+        {
+          "properties": {
+            "backendType": {
+              "enum": [
+                "alicloudSecretsManager"
+              ]
+            }
+          }
+        },
+        {
+          "properties": {
+            "backendType": {
+              "enum": [
+                "ibmcloudSecretsManager"
+              ]
+            }
+          }
+        },
+        {
+          "properties": {
+            "backendType": {
+              "enum": [
+                "akeyless"
+              ]
+            }
+          }
+        }
+      ],
+      "anyOf": [
+        {
+          "required": [
+            "data"
+          ]
+        },
+        {
+          "required": [
+            "dataFrom"
+          ]
+        },
+        {
+          "required": [
+            "dataFromWithOptions"
+          ]
+        }
+      ],
+      "additionalProperties": false
+    },
+    "status": {
+      "type": "object",
+      "properties": {
+        "lastSync": {
+          "type": "string"
+        },
+        "status": {
+          "type": "string"
+        },
+        "observedGeneration": {
+          "type": "number"
+        }
+      },
+      "additionalProperties": false
+    }
+  }
+}
diff --git a/fetch-schemas-api-platform.sh b/fetch-schemas-api-platform.sh
index 3b3ee5f..d3ede06 100755
--- a/fetch-schemas-api-platform.sh
+++ b/fetch-schemas-api-platform.sh
@@ -16,6 +16,11 @@ ISTIO_URL=https://raw.githubusercontent.com/istio/istio/${ISTIO_VERSION}/manifes
 EXTERNAL_SECRET_MANAGER_VERSION=v0.9.11
 EXTERNAL_SECRET_MANAGER_URL=https://raw.githubusercontent.com/external-secrets/external-secrets/${EXTERNAL_SECRET_MANAGER_VERSION}/config/crds/bases/external-secrets.io_externalsecrets.yaml
 
+OLD_EXTERNAL_SECRET_VERSION=8.5.5
+OLD_EXTERNAL_SECRET_MANAGER_URL=https://raw.githubusercontent.com/external-secrets/kubernetes-external-secrets/${OLD_EXTERNAL_SECRET_VERSION}/charts/kubernetes-external-secrets/crds/kubernetes-client.io_externalsecrets_crd.yaml
+
+echo $OLD_EXTERNAL_SECRET_MANAGER_URL
+
 ### SETUP
 mkdir -p ${WORKDIR}
 rm -fr ${WORKDIR}/*
@@ -24,5 +29,6 @@ pushd ${WORKDIR}
 
 $SCHEMA_FETCH_SCRIPT $ISTIO_URL
 $SCHEMA_FETCH_SCRIPT $EXTERNAL_SECRET_MANAGER_URL
+$SCHEMA_FETCH_SCRIPT $OLD_EXTERNAL_SECRET_MANAGER_URL
 
 popd