diff --git a/server/requirements.txt b/server/requirements.txt
index 36c2263..405deb9 100644
--- a/server/requirements.txt
+++ b/server/requirements.txt
@@ -6,6 +6,6 @@ aiosqlite~=0.10.0
 base58~=1.0.0
 indy_vdr~=0.3.4
 cchardet~=2.1.0
-rlp~=0.6.0
+rlp~=4.0.0
 supervisor~=4.0.4
 pynacl~=1.5.0