diff --git a/Gopkg.toml b/Gopkg.toml
index 337f38647b674477ecaff63ffbaffde951e289c7..79d2e0a4b3f5fe1bec5d03b1c8f386a74754c00e 100644
--- a/Gopkg.toml
+++ b/Gopkg.toml
@@ -25,7 +25,7 @@
 #   unused-packages = true
 
 [[constraint]]
-  branch = "master"
+  branch = "697-ability-to-attach-visual-signature-on-pdf-document"
   name = "code.vereign.com/code/restful-api"
 
 [prune]