diff --git a/openapi/openapiv2.json b/openapi/openapiv2.json
index b961ba800..c04f3f035 100644
--- a/openapi/openapiv2.json
+++ b/openapi/openapiv2.json
@@ -5684,28 +5684,6 @@
       },
       "description": "An operation completed successfully."
     },
-    "UnpauseActivityByIdRequestResetOperation": {
-      "type": "object",
-      "properties": {
-        "noWait": {
-          "type": "boolean",
-          "description": "Indicates that the activity should be scheduled immediately.\nNote that this may run simultaneously with any existing executions of the activity."
-        },
-        "resetHeartbeat": {
-          "type": "boolean",
-          "title": "If set, the Heartbeat Details will be cleared out to make the Activity start over from the beginning"
-        }
-      }
-    },
-    "UnpauseActivityByIdRequestResumeOperation": {
-      "type": "object",
-      "properties": {
-        "noWait": {
-          "type": "boolean",
-          "description": "Indicates that if the activity is waiting to retry, it will  be scheduled immediately."
-        }
-      }
-    },
     "UpdateWorkerBuildIdCompatibilityRequestAddNewCompatibleVersion": {
       "type": "object",
       "properties": {
@@ -6453,6 +6431,9 @@
         },
         "updateWorkflowOptionsOperation": {
           "$ref": "#/definitions/v1BatchOperationUpdateWorkflowExecutionOptions"
+        },
+        "unpauseActivitiesOperation": {
+          "$ref": "#/definitions/v1BatchOperationUnpauseActivities"
         }
       }
     },
@@ -6629,10 +6610,10 @@
           "description": "Used to de-dupe requests."
         },
         "resume": {
-          "$ref": "#/definitions/UnpauseActivityByIdRequestResumeOperation"
+          "$ref": "#/definitions/v1UnpauseActivityByIdRequestResumeOperation"
         },
         "reset": {
-          "$ref": "#/definitions/UnpauseActivityByIdRequestResetOperation"
+          "$ref": "#/definitions/v1UnpauseActivityByIdRequestResetOperation"
         }
       }
     },
@@ -7462,6 +7443,56 @@
       ],
       "default": "BATCH_OPERATION_TYPE_UNSPECIFIED"
     },
+    "v1BatchOperationUnpauseActivities": {
+      "type": "object",
+      "properties": {
+        "identity": {
+          "type": "string",
+          "description": "The identity of the worker/client."
+        },
+        "resume": {
+          "$ref": "#/definitions/v1BatchOperationUnpauseActivitiesResumeOperation"
+        },
+        "reset": {
+          "$ref": "#/definitions/v1BatchOperationUnpauseActivitiesResetOperation"
+        },
+        "activityType": {
+          "type": "string",
+          "title": "The type of activity to unpause"
+        },
+        "pauseId": {
+          "type": "string",
+          "description": "Batch will apply only to the paused activities paused by a specified id\nIf not set, the batch will apply to all paused activities of a specified type.\nFor manual pause, this can contain a pause reason. For rule it can be rule id or rule name."
+        },
+        "pauseType": {
+          "type": "string",
+          "title": "Batch will apply only to the activities paused by a specified pause type.\nOptions are: 'manual', 'rule', 'policy' (atm 'policy' is not supported)"
+        }
+      },
+      "description": "BatchOperationPauseActivities sends unpause requests to batch workflows."
+    },
+    "v1BatchOperationUnpauseActivitiesResetOperation": {
+      "type": "object",
+      "properties": {
+        "noWait": {
+          "type": "boolean",
+          "title": "Indicates that the activity should be scheduled immediately.\nThat this may run simultaneously with any existing executions of the activity.\nNote: currently this flag is not supported in batch request"
+        },
+        "resetHeartbeat": {
+          "type": "boolean",
+          "title": "If set, the Heartbeat Details will be cleared out to make the Activity start over from the beginning"
+        }
+      }
+    },
+    "v1BatchOperationUnpauseActivitiesResumeOperation": {
+      "type": "object",
+      "properties": {
+        "noWait": {
+          "type": "boolean",
+          "description": "Indicates that if the activity is waiting to retry, it will  be scheduled immediately."
+        }
+      }
+    },
     "v1BatchOperationUpdateWorkflowExecutionOptions": {
       "type": "object",
       "properties": {
@@ -12433,6 +12464,28 @@
         }
       }
     },
+    "v1UnpauseActivityByIdRequestResetOperation": {
+      "type": "object",
+      "properties": {
+        "noWait": {
+          "type": "boolean",
+          "description": "Indicates that the activity should be scheduled immediately.\nNote that this may run simultaneously with any existing executions of the activity."
+        },
+        "resetHeartbeat": {
+          "type": "boolean",
+          "title": "If set, the Heartbeat Details will be cleared out to make the Activity start over from the beginning"
+        }
+      }
+    },
+    "v1UnpauseActivityByIdRequestResumeOperation": {
+      "type": "object",
+      "properties": {
+        "noWait": {
+          "type": "boolean",
+          "description": "Indicates that if the activity is waiting to retry, it will  be scheduled immediately."
+        }
+      }
+    },
     "v1UnpauseActivityByIdResponse": {
       "type": "object"
     },
diff --git a/openapi/openapiv3.yaml b/openapi/openapiv3.yaml
index 015474359..4704b0086 100644
--- a/openapi/openapiv3.yaml
+++ b/openapi/openapiv3.yaml
@@ -5372,6 +5372,49 @@ components:
         BatchOperationTermination sends terminate requests to batch workflows.
          Keep the parameter in sync with temporal.api.workflowservice.v1.TerminateWorkflowExecutionRequest.
          Ignore first_execution_run_id because this is used for single workflow operation.
+    BatchOperationUnpauseActivities:
+      type: object
+      properties:
+        identity:
+          type: string
+          description: The identity of the worker/client.
+        resume:
+          $ref: '#/components/schemas/BatchOperationUnpauseActivities_ResumeOperation'
+        reset:
+          $ref: '#/components/schemas/BatchOperationUnpauseActivities_ResetOperation'
+        activityType:
+          type: string
+          description: The type of activity to unpause
+        pauseId:
+          type: string
+          description: |-
+            Batch will apply only to the paused activities paused by a specified id
+             If not set, the batch will apply to all paused activities of a specified type.
+             For manual pause, this can contain a pause reason. For rule it can be rule id or rule name.
+        pauseType:
+          type: string
+          description: |-
+            Batch will apply only to the activities paused by a specified pause type.
+             Options are: 'manual', 'rule', 'policy' (atm 'policy' is not supported)
+      description: BatchOperationPauseActivities sends unpause requests to batch workflows.
+    BatchOperationUnpauseActivities_ResetOperation:
+      type: object
+      properties:
+        noWait:
+          type: boolean
+          description: |-
+            Indicates that the activity should be scheduled immediately.
+             That this may run simultaneously with any existing executions of the activity.
+             Note: currently this flag is not supported in batch request
+        resetHeartbeat:
+          type: boolean
+          description: If set, the Heartbeat Details will be cleared out to make the Activity start over from the beginning
+    BatchOperationUnpauseActivities_ResumeOperation:
+      type: object
+      properties:
+        noWait:
+          type: boolean
+          description: Indicates that if the activity is waiting to retry, it will  be scheduled immediately.
     BatchOperationUpdateWorkflowExecutionOptions:
       type: object
       properties:
@@ -9152,6 +9195,8 @@ components:
           $ref: '#/components/schemas/BatchOperationReset'
         updateWorkflowOptionsOperation:
           $ref: '#/components/schemas/BatchOperationUpdateWorkflowExecutionOptions'
+        unpauseActivitiesOperation:
+          $ref: '#/components/schemas/BatchOperationUnpauseActivities'
     StartBatchOperationResponse:
       type: object
       properties: {}
diff --git a/temporal/api/batch/v1/message.proto b/temporal/api/batch/v1/message.proto
index cd243e838..4a531119c 100644
--- a/temporal/api/batch/v1/message.proto
+++ b/temporal/api/batch/v1/message.proto
@@ -117,3 +117,23 @@ message BatchOperationUpdateWorkflowExecutionOptions {
   // To unset a field, set it to null and use the update mask to indicate that it should be mutated.
   google.protobuf.FieldMask update_mask = 3;
 }
+
+// BatchOperationPauseActivities sends unpause requests to batch workflows.
+message BatchOperationUnpauseActivities {
+  // The identity of the worker/client.
+  string identity = 1;
+
+  // The activity type to unpause.
+  string activity_type = 2;
+
+  // schedule activity immediately if activity is waiting for the retry
+  // Indicates that if the activity is waiting to retry, it will  be scheduled immediately.
+  bool skip_retry = 3;
+
+  // If set, the number of attempts will be reset.
+  bool reset_attempts = 4;
+
+  // If set, the Heartbeat Details will be cleared out to make the Activity start over from the beginning.
+  // If reset_attempts flag is no set this flag has no effect.
+  bool reset_heartbeat = 5;
+}
diff --git a/temporal/api/workflowservice/v1/request_response.proto b/temporal/api/workflowservice/v1/request_response.proto
index f84e3e2ce..a6e10eca2 100644
--- a/temporal/api/workflowservice/v1/request_response.proto
+++ b/temporal/api/workflowservice/v1/request_response.proto
@@ -1561,6 +1561,7 @@ message StartBatchOperationRequest {
         temporal.api.batch.v1.BatchOperationDeletion deletion_operation = 13;
         temporal.api.batch.v1.BatchOperationReset reset_operation = 14;
         temporal.api.batch.v1.BatchOperationUpdateWorkflowExecutionOptions update_workflow_options_operation = 15;
+        temporal.api.batch.v1.BatchOperationUnpauseActivities unpause_activities_operation = 16;
     }
 }