diff --git a/src/flake8_requirements/checker.py b/src/flake8_requirements/checker.py
index 7aed7a5..881e4c4 100644
--- a/src/flake8_requirements/checker.py
+++ b/src/flake8_requirements/checker.py
@@ -18,7 +18,7 @@
 from .modules import STDLIB_PY3
 
 # NOTE: Changing this number will alter package version as well.
-__version__ = "1.5.1"
+__version__ = "1.5.2"
 __license__ = "MIT"
 
 LOG = getLogger('flake8.plugin.requirements')
diff --git a/src/flake8_requirements/modules.py b/src/flake8_requirements/modules.py
index 57df0cd..182b7a4 100644
--- a/src/flake8_requirements/modules.py
+++ b/src/flake8_requirements/modules.py
@@ -320,14 +320,12 @@
     "concurrent",
     "configparser",
     "contextlib",
-    "contextvars",
     "copy",
     "copyreg",
     "crypt",
     "csv",
     "ctypes",
     "curses",
-    "dataclasses",
     "datetime",
     "dbm",
     "decimal",
@@ -427,7 +425,6 @@
     "rlcompleter",
     "runpy",
     "sched",
-    "secrets",
     "select",
     "selectors",
     "shelve",
@@ -475,7 +472,6 @@
     "turtle",
     "turtledemo",
     "types",
-    "typing",
     "unicodedata",
     "unittest",
     "urllib",
@@ -492,10 +488,20 @@
     "xdrlib",
     "xml",
     "xmlrpc",
-    "zipapp",
     "zipfile",
     "zipimport",
     "zlib",
+    # Modules since Python 3.5
+    "typing",
+    "zipapp",
+    # Modules since Python 3.6
+    "secrets",
+    # Modules since Python 3.7
+    "contextvars",
+    "dataclasses",
+    # Modules since Python 3.9
+    "graphlib",
+    "zoneinfo",
 )
 
 # Mapping for known 3rd party projects, which provide more than one module