diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6daeade..c52953c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,9 +1,10 @@
 # Changelog
 
-## 3.1.2
+## 3.1.2 (December 20, 2020)
 
 OTHER:
 
+- fixes vulnerabilities in Docker image by using updated Alpine base image
 - start using Github Actions CI for tests and drop Travis CI
 
 ## 3.1.1 (October 3, 2020)
diff --git a/lib/dyndnsd/version.rb b/lib/dyndnsd/version.rb
index 9993900..a7362b7 100644
--- a/lib/dyndnsd/version.rb
+++ b/lib/dyndnsd/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Dyndnsd
-  VERSION = '3.1.1'
+  VERSION = '3.1.2'
 end