diff --git a/pyproject.toml b/pyproject.toml
index bc5ef733e..9756a0d79 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -53,6 +53,7 @@ openpyxl = [
 mem0 = ["mem0ai>=0.1.29"]
 docling = [
     "docling>=2.12.0",
+    # Required for transformers compatibility
     "tokenizers>=0.21,<0.22",
 ]
 
diff --git a/src/crewai/knowledge/source/crew_docling_source.py b/src/crewai/knowledge/source/crew_docling_source.py
index 98aedea99..6cdff5c52 100644
--- a/src/crewai/knowledge/source/crew_docling_source.py
+++ b/src/crewai/knowledge/source/crew_docling_source.py
@@ -15,10 +15,15 @@ from crewai.utilities.logger import Logger
 
 
 class CrewDoclingSource(BaseKnowledgeSource):
-    """Default Source class for converting documents to markdown or json
-    This will auto support PDF, DOCX, and TXT, XLSX, Images, and HTML files without any additional dependencies and follows the docling package as the source of truth.
+    """Default Source class for converting documents to Markdown or JSON
+    This will auto support PDF, DOCX, TXT, XLSX, Images, and HTML files without any additional dependencies and follows the docling package as the source of truth.
     
-    Note: To use this class, install crewai with the docling extra: `pip install crewai[docling]`
+    Requirements:
+        - Install with: `pip install crewai[docling]`
+        - Requires tokenizers>=0.21,<0.22 for transformers compatibility
+    
+    Notes:
+        - This is an optional dependency, only needed for document processing features.
     """
 
     _logger: Logger = Logger(verbose=True)
diff --git a/tests/test_tokenizers_compatibility.py b/tests/test_tokenizers_compatibility.py
index 0d7ed6b54..edb6ab78c 100644
--- a/tests/test_tokenizers_compatibility.py
+++ b/tests/test_tokenizers_compatibility.py
@@ -1,4 +1,6 @@
-"""Test to verify compatibility between tokenizers and transformers."""
+"""Test suite to verify compatibility between tokenizers and transformers packages.
+Ensures the installed tokenizers version meets requirements and can work effectively with transformers.
+"""
 
 import pytest