diff --git a/pep-0224.txt b/pep-0224.txt
index fb9cde68a..b03ace64e 100644
--- a/pep-0224.txt
+++ b/pep-0224.txt
@@ -202,7 +202,7 @@ Comments from our BDFL
         * must start with two underscores (to match __doc__)
         * must be extractable using some form of inspection (e.g. by using
           a naming convention which includes some fixed name part)
-        * must be compatible with class inheritence (i.e. should be
+        * must be compatible with class inheritance (i.e. should be
           stored as attribute)
 
     Later on in March, Guido pronounced on this PEP in March 2001 (on
diff --git a/pep-0367.txt b/pep-0367.txt
index c1238505e..ab1ebe332 100644
--- a/pep-0367.txt
+++ b/pep-0367.txt
@@ -528,7 +528,7 @@ super or super()
 This proposal leaves no room for different names, signatures, or application
 to other classes, or instances. A way to allow some similar use alongside the
 normal proposal would be favorable, encouraging good design of multiple
-inheritence trees and compatible methods.
+inheritance trees and compatible methods.
 
 super(\*p, \*\*kw)
 ------------------
diff --git a/pep-3135.txt b/pep-3135.txt
index 49f373e05..a9e049d7e 100644
--- a/pep-3135.txt
+++ b/pep-3135.txt
@@ -528,7 +528,7 @@ super or super()
 This proposal leaves no room for different names, signatures, or application
 to other classes, or instances. A way to allow some similar use alongside the
 normal proposal would be favorable, encouraging good design of multiple
-inheritence trees and compatible methods.
+inheritance trees and compatible methods.
 
 super(\*p, \*\*kw)
 ------------------