diff --git a/.Rbuildignore b/.Rbuildignore
index a053d0e..86f246b 100644
--- a/.Rbuildignore
+++ b/.Rbuildignore
@@ -3,3 +3,4 @@
 ^README\.Rmd$
 ^codecov\.yml$
 ^appveyor\.yml$
+^CODE_OF_CONDUCT\.md$
diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md
new file mode 100644
index 0000000..0343527
--- /dev/null
+++ b/CODE_OF_CONDUCT.md
@@ -0,0 +1,25 @@
+# Contributor Code of Conduct
+
+As contributors and maintainers of this project, we pledge to respect all people who 
+contribute through reporting issues, posting feature requests, updating documentation,
+submitting pull requests or patches, and other activities.
+
+We are committed to making participation in this project a harassment-free experience for
+everyone, regardless of level of experience, gender, gender identity and expression,
+sexual orientation, disability, personal appearance, body size, race, ethnicity, age, or religion.
+
+Examples of unacceptable behavior by participants include the use of sexual language or
+imagery, derogatory comments or personal attacks, trolling, public or private harassment,
+insults, or other unprofessional conduct.
+
+Project maintainers have the right and responsibility to remove, edit, or reject comments,
+commits, code, wiki edits, issues, and other contributions that are not aligned to this 
+Code of Conduct. Project maintainers who do not follow the Code of Conduct may be removed 
+from the project team.
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by 
+opening an issue or contacting one or more of the project maintainers.
+
+This Code of Conduct is adapted from the Contributor Covenant 
+(https://www.contributor-covenant.org), version 1.0.0, available at 
+https://contributor-covenant.org/version/1/0/0/.
diff --git a/README.Rmd b/README.Rmd
index f16ebf8..6ce45fd 100644
--- a/README.Rmd
+++ b/README.Rmd
@@ -138,3 +138,8 @@ library(listdown)
 ## basic example code
 ```
 -->
+
+## Code of Conduct
+
+Please note that the listdown package is released with a [Contributor Code of Conduct](https://raw.githubusercontent.com/kaneplusplus/listdown/master/CODE_OF_CONDUCT.html). By contributing to this project, you agree to abide by its terms.
+
diff --git a/README.md b/README.md
index edb9667..b8f6dce 100644
--- a/README.md
+++ b/README.md
@@ -159,3 +159,10 @@ library(listdown)
 ## basic example code
 ```
 -->
+
+## Code of Conduct
+
+Please note that the listdown package is released with a [Contributor
+Code of
+Conduct](https://raw.githubusercontent.com/kaneplusplus/listdown/master/CODE_OF_CONDUCT.html).
+By contributing to this project, you agree to abide by its terms.