diff --git a/iblrig/base_tasks.py b/iblrig/base_tasks.py
index 1ba71d104..6c86f7dc3 100644
--- a/iblrig/base_tasks.py
+++ b/iblrig/base_tasks.py
@@ -59,7 +59,7 @@ class HasBpod(Protocol):
 
 class BaseSession(ABC):
     version = None
-    """str: !!CURRENTLY UNUSED!! task version string."""
+    """str: Task version string."""
     # protocol_name: str | None = None
     """str: The name of the task protocol (NB: avoid spaces)."""
     base_parameters_file: Path | None = None
@@ -431,6 +431,8 @@ def _make_task_parameters_dict(self):
         }
         with contextlib.suppress(importlib.metadata.PackageNotFoundError):
             patch_dict['PROJECT_EXTRACTION_VERSION'] = importlib.metadata.version('project_extraction')
+        if self.version is not None:
+            patch_dict['TASK_VERSION'] = self.version
         output_dict.update(patch_dict)
         return output_dict