diff --git a/imapclient/version.py b/imapclient/version.py
index 33df0adb..ee49a304 100644
--- a/imapclient/version.py
+++ b/imapclient/version.py
@@ -2,10 +2,12 @@
 # Released subject to the New BSD License
 # Please see http://en.wikipedia.org/wiki/BSD_licenses
 
+from typing import Tuple
+
 version_info = (2, 3, 1, "final")
 
 
-def _imapclient_version_string(vinfo):
+def _imapclient_version_string(vinfo: Tuple[int, int, int, str]) -> str:
     major, minor, micro, releaselevel = vinfo
     v = "%d.%d.%d" % (major, minor, micro)
     if releaselevel != "final":
diff --git a/pyproject.toml b/pyproject.toml
index a0f54775..deb8b238 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -60,7 +60,6 @@ module = [
     "imapclient.testable_imapclient",
     "imapclient.tls",
     "imapclient.util",
-    "imapclient.version",
     "interact",
     "livetest",
     "setup",