diff --git a/go.mod b/go.mod
index cbeb340..1d85b9f 100755
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,5 @@
 module github.com/pdftron/pdftron-go/v2
 
 go 1.15
+
+require golang.org/x/text v0.8.0