diff --git a/lib/csv/version.rb b/lib/csv/version.rb
index 22a6df4be9..ce55373f02 100644
--- a/lib/csv/version.rb
+++ b/lib/csv/version.rb
@@ -2,5 +2,5 @@
 
 class CSV
   # The version of the installed library.
-  VERSION = "3.1.0"
+  VERSION = "3.1.1"
 end