diff --git a/setup.cfg b/setup.cfg
index 73986f692b6cd..48948e0d754c9 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -207,9 +207,6 @@ check_untyped_defs=False
 [mypy-pandas.core.indexes.multi]
 check_untyped_defs=False
 
-[mypy-pandas.core.indexes.period]
-check_untyped_defs=False
-
 [mypy-pandas.core.indexes.range]
 check_untyped_defs=False
 
@@ -243,9 +240,6 @@ check_untyped_defs=False
 [mypy-pandas.core.series]
 check_untyped_defs=False
 
-[mypy-pandas.core.strings]
-check_untyped_defs=False
-
 [mypy-pandas.core.window.common]
 check_untyped_defs=False