diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 797d0dc..4923069 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -62,8 +62,8 @@ As always, if you're modifying the software, you'll need to have
 your development environment set up. You need:
 
 * make
-* python2 (invokable as "python2")
-* python3 (invokable as "python3")
+* python2 (invocable as "python2")
+* python3 (invocable as "python3")
 * pylint (see below)
 
 An easy way to install pylint is to use pip.
diff --git a/README.md b/README.md
index eb84851..105b4a3 100644
--- a/README.md
+++ b/README.md
@@ -65,7 +65,7 @@ is configured to use UTF-8 (the most common situation by far).
 
 However, it's possible for flawfinder to halt if there is a
 character encoding problem and you're running Python3.
-The usual symptom is error meesages like this:
+The usual symptom is error messages like this:
 `Error: encoding error in FILENAME 'ENCODING' codec can't decode byte ... in position ...: invalid start byte`
 
 Unfortunately, Python3 fails to provide useful built-ins to deal with this.