diff --git a/Gemfile.lock b/Gemfile.lock
index b95b52a..7c91704 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    jekyll-theme-chirpy (3.1.0)
+    jekyll-theme-chirpy (3.1.1)
       jekyll (~> 4.1)
       jekyll-archives (~> 2.2)
       jekyll-paginate (~> 1.1)
diff --git a/_sass/jekyll-theme-chirpy.scss b/_sass/jekyll-theme-chirpy.scss
index 685b2a0..588f3a9 100644
--- a/_sass/jekyll-theme-chirpy.scss
+++ b/_sass/jekyll-theme-chirpy.scss
@@ -1,7 +1,7 @@
 /*!
  * The styles for Jekyll theme Chirpy
  *
- * Chirpy v3.1.0 (https://github.com/cotes2020/jekyll-theme-chirpy)
+ * Chirpy v3.1.1 (https://github.com/cotes2020/jekyll-theme-chirpy)
  * © 2019 Cotes Chung
  * MIT Licensed
  */
diff --git a/assets/js/.copyright b/assets/js/.copyright
index 9e01dbb..f233cc9 100644
--- a/assets/js/.copyright
+++ b/assets/js/.copyright
@@ -1,5 +1,5 @@
 /*!
- * Chirpy v3.1.0 (https://github.com/cotes2020/jekyll-theme-chirpy/)
+ * Chirpy v3.1.1 (https://github.com/cotes2020/jekyll-theme-chirpy/)
  * © 2019 Cotes Chung
  * MIT Licensed
  */
diff --git a/assets/js/dist/categories.min.js b/assets/js/dist/categories.min.js
index 4c7b0f5..93bcd48 100644
--- a/assets/js/dist/categories.min.js
+++ b/assets/js/dist/categories.min.js
@@ -1,5 +1,5 @@
 /*!
- * Chirpy v3.1.0 (https://github.com/cotes2020/jekyll-theme-chirpy/)
+ * Chirpy v3.1.1 (https://github.com/cotes2020/jekyll-theme-chirpy/)
  * © 2019 Cotes Chung
  * MIT Licensed
  */
diff --git a/assets/js/dist/home.min.js b/assets/js/dist/home.min.js
index 41141a0..b8b970a 100644
--- a/assets/js/dist/home.min.js
+++ b/assets/js/dist/home.min.js
@@ -1,5 +1,5 @@
 /*!
- * Chirpy v3.1.0 (https://github.com/cotes2020/jekyll-theme-chirpy/)
+ * Chirpy v3.1.1 (https://github.com/cotes2020/jekyll-theme-chirpy/)
  * © 2019 Cotes Chung
  * MIT Licensed
  */
diff --git a/assets/js/dist/page.min.js b/assets/js/dist/page.min.js
index c81cf3b..4009ba0 100644
--- a/assets/js/dist/page.min.js
+++ b/assets/js/dist/page.min.js
@@ -1,5 +1,5 @@
 /*!
- * Chirpy v3.1.0 (https://github.com/cotes2020/jekyll-theme-chirpy/)
+ * Chirpy v3.1.1 (https://github.com/cotes2020/jekyll-theme-chirpy/)
  * © 2019 Cotes Chung
  * MIT Licensed
  */
diff --git a/assets/js/dist/post.min.js b/assets/js/dist/post.min.js
index c936981..c3d25c1 100644
--- a/assets/js/dist/post.min.js
+++ b/assets/js/dist/post.min.js
@@ -1,5 +1,5 @@
 /*!
- * Chirpy v3.1.0 (https://github.com/cotes2020/jekyll-theme-chirpy/)
+ * Chirpy v3.1.1 (https://github.com/cotes2020/jekyll-theme-chirpy/)
  * © 2019 Cotes Chung
  * MIT Licensed
  */
diff --git a/assets/js/dist/pvreport.min.js b/assets/js/dist/pvreport.min.js
index 1ea520e..42655ae 100644
--- a/assets/js/dist/pvreport.min.js
+++ b/assets/js/dist/pvreport.min.js
@@ -1,5 +1,5 @@
 /*!
- * Chirpy v3.1.0 (https://github.com/cotes2020/jekyll-theme-chirpy/)
+ * Chirpy v3.1.1 (https://github.com/cotes2020/jekyll-theme-chirpy/)
  * © 2019 Cotes Chung
  * MIT Licensed
  */
diff --git a/jekyll-theme-chirpy.gemspec b/jekyll-theme-chirpy.gemspec
index 1ce2951..b24b339 100644
--- a/jekyll-theme-chirpy.gemspec
+++ b/jekyll-theme-chirpy.gemspec
@@ -2,7 +2,7 @@
 
 Gem::Specification.new do |spec|
   spec.name          = "jekyll-theme-chirpy"
-  spec.version       = "3.1.0"
+  spec.version       = "3.1.1"
   spec.authors       = ["Cotes Chung"]
   spec.email         = ["cotes.chung@gmail.com"]
 
diff --git a/package.json b/package.json
index 6b6aeed..708d282 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "jekyll-theme-chirpy",
-  "version": "3.1.0",
+  "version": "3.1.1",
   "description": "A minimal, sidebar, responsive web design Jekyll theme that focuses on text presentation.",
   "main": "index.js",
   "directories": {