diff --git a/package_control/library.py b/package_control/library.py
index 8cb8b022..22dbbf6b 100644
--- a/package_control/library.py
+++ b/package_control/library.py
@@ -10,14 +10,16 @@
 
 BUILTIN_LIBRARIES = {
     "3.3": {},
-    "3.8": {"enum", "pathlib", "typing"},
-    "3.13": {"enum", "pathlib", "typing"},
+    "3.8": {"enum34", "pathlib", "typing"},
+    "3.13": {"enum34", "pathlib", "typing"},
 }
 """3rd-party libraries, which are part of stdlib as of certain python version"""
 
 DEPENDENCY_NAME_MAP = {
     "bs4": "beautifulsoup4",
     "dateutil": "python-dateutil",
+    "enum": "enum34",
+    "pymdownx": "pymdown-extensions",
     "python-jinja2": "Jinja2",
     "python-markdown": "Markdown",
     "python-pywin32": "pywin32",