diff --git a/CHANGELOG.md b/CHANGELOG.md
index 279a02e99e..449560d0de 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -36,7 +36,7 @@
   https://github.com/fluent/fluentd/pull/2598
 * buf_file_single: fix duplicated path setting check
   https://github.com/fluent/fluentd/pull/2600
-* fix msgpack-ruby depedency to use recent feature
+* fix msgpack-ruby dependency to use recent feature
   https://github.com/fluent/fluentd/pull/2606
 
 
@@ -640,7 +640,7 @@
 
 ## Release v1.0.0 - 2017/12/6
 
-See [CNCF announcment](https://www.cncf.io/blog/2017/12/06/fluentd-v1-0/) :)
+See [CNCF announcement](https://www.cncf.io/blog/2017/12/06/fluentd-v1-0/) :)
 
 ### New features / Enhancements
 
@@ -910,7 +910,7 @@ See [CNCF announcment](https://www.cncf.io/blog/2017/12/06/fluentd-v1-0/) :)
   https://github.com/fluent/fluentd/pull/1492
 * parser: Allow escape sequence in Apache access log
   https://github.com/fluent/fluentd/pull/1479
-* config: Add actual value in the placholder error message
+* config: Add actual value in the placeholder error message
   https://github.com/fluent/fluentd/pull/1497
 * log: Add Fluent::Log#<< to support some SDKs
   https://github.com/fluent/fluentd/pull/1478
@@ -1227,7 +1227,7 @@ See [CNCF announcment](https://www.cncf.io/blog/2017/12/06/fluentd-v1-0/) :)
   https://github.com/fluent/fluentd/pull/1067
 * filter_record_transformer: Fix to prevent overwriting reserved placeholder keys
   https://github.com/fluent/fluentd/pull/1176
-* Migrate some build-in plugins into v0.14 API
+* Migrate some built-in plugins into v0.14 API
   https://github.com/fluent/fluentd/pull/1149
   https://github.com/fluent/fluentd/pull/1151
 * Update dependencies