diff --git a/UPGRADING.INTERNALS b/UPGRADING.INTERNALS
index af8dc91c970..e7973c11b08 100644
--- a/UPGRADING.INTERNALS
+++ b/UPGRADING.INTERNALS
@@ -130,9 +130,9 @@ PHP 7.3 INTERNALS UPGRADE NOTES
 
  r.  fields of php_url struct change from char * to zend_string *
 
- s. Specual purose zend_functions marked by ZEND_ACC_CALL_VIA_TRAMPOLINE or
+ s. Special purpose zend_functions marked by ZEND_ACC_CALL_VIA_TRAMPOLINE or
     ZEND_ACC_FAKE_CLOSURE flags use reserved[0] for internal purpose.
-    Third party extensions must not modify reserved[] fileds of these functins.
+    Third party extensions must not modify reserved[] fields of these functions.
 
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 2. Build system changes