diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 94add0056..0a31d6a99 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -31,7 +31,7 @@ There is a test generator in `debug.rb` project to make it easier to write tests
 
 ### Quickstart
 
-This section shows you how to create test file by test generator. For more advanced informations on creating tests, please take a look at [gentest options](#gentest-options). (You can also check by `$bin/gentest -h`)
+This section shows you how to create test file by test generator. For more advanced information on creating tests, please take a look at [gentest options](#gentest-options). (You can also check by `$bin/gentest -h`)
 
 #### 1. Create a target file for debuggee.
 
diff --git a/lib/debug/session.rb b/lib/debug/session.rb
index fe8e7ab77..79b5b0bb8 100644
--- a/lib/debug/session.rb
+++ b/lib/debug/session.rb
@@ -1841,7 +1841,7 @@ def self.add_catch_breakpoint pat
     ::DEBUGGER__::SESSION.add_catch_breakpoint pat
   end
 
-  # String for requring location
+  # String for requiring location
   # nil for -r
   def self.require_location
     locs = caller_locations