diff --git a/yarn.lock b/yarn.lock
index 8774610..cfc007d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1409,8 +1409,8 @@ ethereum-common@^0.0.18:
   resolved "https://registry.yarnpkg.com/ethereum-common/-/ethereum-common-0.0.18.tgz#2fdc3576f232903358976eb39da783213ff9523f"
 
 ethereumjs-tx@^1.2.5:
-  version "1.3.3"
-  resolved "https://registry.yarnpkg.com/ethereumjs-tx/-/ethereumjs-tx-1.3.3.tgz#ece051d3efdbe771ad2a518d61632ca2ab75ecbb"
+  version "1.3.7"
+  resolved "https://registry.yarnpkg.com/ethereumjs-tx/-/ethereumjs-tx-1.3.7.tgz#88323a2d875b10549b8347e09f4862b546f3d89a"
   dependencies:
     ethereum-common "^0.0.18"
     ethereumjs-util "^5.0.0"