diff --git a/requirements.txt b/requirements.txt
index 74beec225..dd95ca76e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,11 @@
 Flask==1.1.1
 Sphinx==1.8.4
+base58==1.0.2
+bitstring==3.1.6
 cheroot==8.2.1
+coincurve==13.0.0
 commonmark==0.8.1
+cryptography==2.8
 ephemeral-port-reserve==1.1.1
 flake8==3.7.8
 flaky==3.6.1