diff --git a/README.md b/README.md
index e46dbf8..f4673a3 100644
--- a/README.md
+++ b/README.md
@@ -61,7 +61,7 @@
 ```
 
 Deploy OpenWhisk using ansible environment that contains the runtime of type `blackboxes` with name `dockerskeleton`
-Assuming you have OpenWhisk already deploy localy and `OPENWHISK_HOME` pointing to root directory of OpenWhisk core repository.
+Assuming you have OpenWhisk already deploy locally and `OPENWHISK_HOME` pointing to root directory of OpenWhisk core repository.
 
 Set `ROOTDIR` to the root directory of this repository.
 
diff --git a/core/CHANGELOG.md b/core/CHANGELOG.md
index 0912720..f9549d5 100644
--- a/core/CHANGELOG.md
+++ b/core/CHANGELOG.md
@@ -49,13 +49,13 @@
 
 ## 1.2.0
 Changes:
-  - Added utilties curl and wget.
+  - Added utilities curl and wget.
 
 ## 1.1.0
 Changes:
   - Allow input parameter larger than 128KB.
   - Added perl language support.
-  - Added utilties jq, zip, git.
+  - Added utilities jq, zip, git.
 
 ## 1.0.0
 Initial version.
diff --git a/core/actionProxy/stub.sh b/core/actionProxy/stub.sh
index a76a336..a9e57b1 100644
--- a/core/actionProxy/stub.sh
+++ b/core/actionProxy/stub.sh
@@ -31,5 +31,5 @@
 read inputstring
 echo 'stdin input length: '${#inputstring}
 
-# last line of output = ation result
+# last line of output = action result
 echo '{ "error": "This is a stub action. Replace it with custom logic." }'