diff --git a/cmd/digest/main.go b/cmd/digest/main.go
index 20f64ddb..308be461 100644
--- a/cmd/digest/main.go
+++ b/cmd/digest/main.go
@@ -9,6 +9,9 @@ import (
 
 	"github.com/docker/distribution/version"
 	"github.com/opencontainers/go-digest"
+
+	_ "crypto/sha256"
+	_ "crypto/sha512"
 )
 
 var (