diff --git a/pyproject.toml b/pyproject.toml
index 928bb083408fbf24b26961bd1bff5bb7bc35f681..69c7a1058f2978c986ad1869391539847dd79ef9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "aliby"
-version = "0.1.54"
+version = "0.1.55"
 description = "Process and analyse live-cell imaging data"
 authors = ["Alan Munoz <alan.munoz@ed.ac.uk>"]
 packages = [
diff --git a/src/postprocessor/grouper.py b/src/postprocessor/grouper.py
index 09bff52e5c22b54f5b6346a17a3d7e1a6cafc0af..6b9fa9ee56a1d77fa24ff3b29299ca352db34466 100644
--- a/src/postprocessor/grouper.py
+++ b/src/postprocessor/grouper.py
@@ -165,8 +165,6 @@ class Grouper(ABC):
     ):
         """Enable different threads for independent chains, particularly useful when aggregating multiple elements."""
         if pool is None:
-            # Alan: why is None changed to 8
-            # pool = 8
             pass
         chainers = chainers or self.chainers
         if pool: