diff --git a/reana_commons/openapi_specifications/reana_server.json b/reana_commons/openapi_specifications/reana_server.json
index e3500970..96ce8eae 100644
--- a/reana_commons/openapi_specifications/reana_server.json
+++ b/reana_commons/openapi_specifications/reana_server.json
@@ -429,6 +429,26 @@
                     "slurmcern"
                   ]
                 },
+                "dask_cluster_default_number_of_workers": {
+                  "title": "The number of Dask workers created by default",
+                  "value": "2Gi"
+                },
+                "dask_cluster_default_single_worker_memory": {
+                  "title": "The amount of memory used by default by a single Dask worker",
+                  "value": "2Gi"
+                },
+                "dask_cluster_max_memory_limit": {
+                  "title": "The maximum memory limit for Dask clusters created by users",
+                  "value": "16Gi"
+                },
+                "dask_cluster_max_single_worker_memory": {
+                  "title": "The maximum amount of memory that users can ask for the single Dask worker",
+                  "value": "8Gi"
+                },
+                "dask_enabled": {
+                  "title": "Dask workflows allowed in the cluster",
+                  "value": "False"
+                },
                 "default_kubernetes_jobs_timeout": {
                   "title": "Default timeout for Kubernetes jobs",
                   "value": "604800"
@@ -479,6 +499,61 @@
                   },
                   "type": "object"
                 },
+                "dask_cluster_default_number_of_workers": {
+                  "properties": {
+                    "title": {
+                      "type": "string"
+                    },
+                    "value": {
+                      "type": "string"
+                    }
+                  },
+                  "type": "object"
+                },
+                "dask_cluster_default_single_worker_memory": {
+                  "properties": {
+                    "title": {
+                      "type": "string"
+                    },
+                    "value": {
+                      "type": "string"
+                    }
+                  },
+                  "type": "object"
+                },
+                "dask_cluster_max_memory_limit": {
+                  "properties": {
+                    "title": {
+                      "type": "string"
+                    },
+                    "value": {
+                      "type": "string"
+                    }
+                  },
+                  "type": "object"
+                },
+                "dask_cluster_max_single_worker_memory": {
+                  "properties": {
+                    "title": {
+                      "type": "string"
+                    },
+                    "value": {
+                      "type": "string"
+                    }
+                  },
+                  "type": "object"
+                },
+                "dask_enabled": {
+                  "properties": {
+                    "title": {
+                      "type": "string"
+                    },
+                    "value": {
+                      "type": "string"
+                    }
+                  },
+                  "type": "object"
+                },
                 "default_kubernetes_jobs_timeout": {
                   "properties": {
                     "title": {
diff --git a/reana_commons/validation/schemas/reana_analysis_schema.json b/reana_commons/validation/schemas/reana_analysis_schema.json
index 1a3bc422..17656151 100644
--- a/reana_commons/validation/schemas/reana_analysis_schema.json
+++ b/reana_commons/validation/schemas/reana_analysis_schema.json
@@ -108,6 +108,27 @@
               "$id": "/properties/workflow/properties/resources/properties/kerberos",
               "type": "boolean",
               "title": "Kerberos authentication for the whole workflow."
+            },
+            "dask": {
+              "$id": "/properties/workflow/properties/resources/properties/dask",
+              "type": "object",
+              "title": "Information about Dask cluster requested for the analysis.",
+              "properties": {
+                "image": {
+                  "type": "string",
+                  "description": "Container image to be used by Dask scheduler and workers."
+                },
+                "number_of_workers": {
+                  "type": "number",
+                  "description": "Requested number of Dask workers."
+                },
+                "single_worker_memory": {
+                  "type": "string",
+                  "description": "Requested memory for one Dask worker.",
+                  "pattern": "^[1-9][0-9]*(Ei|Pi|Ti|Gi|Mi|Ki|E|P|T|G|M|K)$"
+                }
+              },
+              "required": ["image"]
             }
           },
           "additionalProperties": false