diff --git a/pdfstar/go.mod b/pdfstar/go.mod
index 006cf2c728..4e0591a58c 100644
--- a/pdfstar/go.mod
+++ b/pdfstar/go.mod
@@ -19,6 +19,6 @@ require (
 	golang.org/x/sys v0.0.0-20210616094352-59db8d763f22 // indirect
 	golang.org/x/text v0.3.6 // indirect
 	gopkg.in/go-playground/assert.v1 v1.2.1 // indirect
-	gopkg.in/go-playground/validator.v8 v8.18.2
+	gopkg.in/go-playground/validator.v10 v10.6.1
 	gopkg.in/yaml.v2 v2.4.0
 )