diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3ba4882..eeff255 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# 1.3.1 (March 1, 2021)
+
+- Fix: argument passing for keyword args in Ruby 3
+
 # 1.3.0 (September 21, 2020)
 
 * Feature: add TooManyRequests (429) error class
diff --git a/lib/pco/api/version.rb b/lib/pco/api/version.rb
index e1236c4..721377d 100644
--- a/lib/pco/api/version.rb
+++ b/lib/pco/api/version.rb
@@ -1,5 +1,5 @@
 module PCO
   module API
-    VERSION = '1.3.0'
+    VERSION = '1.3.1'
   end
 end