diff --git a/go.mod b/go.mod
index 12d0f4c9d9..2299eb5017 100644
--- a/go.mod
+++ b/go.mod
@@ -31,7 +31,7 @@ require (
 	github.com/gorilla/websocket v1.4.1-0.20190629185528-ae1634f6a989
 	github.com/graph-gophers/graphql-go v0.0.0-20191115155744-f33e81362277
 	github.com/hashicorp/golang-lru v0.5.4
-	github.com/holiman/uint256 v1.1.0
+	github.com/holiman/uint256 v1.1.1
 	github.com/huin/goupnp v1.0.0
 	github.com/influxdata/influxdb v1.2.3-0.20180221223340-01288bdb0883
 	github.com/jackpal/go-nat-pmp v1.0.2-0.20160603034137-1fa385a6f458
diff --git a/go.sum b/go.sum
index f3b5178f6a..4c46eeb5af 100644
--- a/go.sum
+++ b/go.sum
@@ -95,8 +95,8 @@ github.com/graph-gophers/graphql-go v0.0.0-20191115155744-f33e81362277 h1:E0whKx
 github.com/graph-gophers/graphql-go v0.0.0-20191115155744-f33e81362277/go.mod h1:9CQHMSxwO4MprSdzoIEobiHpoLtHm77vfxsvsIN5Vuc=
 github.com/hashicorp/golang-lru v0.5.4 h1:YDjusn29QI/Das2iO9M0BHnIbxPeyuCHsjMW+lJfyTc=
 github.com/hashicorp/golang-lru v0.5.4/go.mod h1:iADmTwqILo4mZ8BN3D2Q6+9jd8WM5uGBxy+E8yxSoD4=
-github.com/holiman/uint256 v1.1.0 h1:Iye6ze0DW9s+7EMn8y6Q4ebegDzpu28JQHEVM1Bq+Wg=
-github.com/holiman/uint256 v1.1.0/go.mod h1:y4ga/t+u+Xwd7CpDgZESaRcWy0I7XMlTMA25ApIH5Jw=
+github.com/holiman/uint256 v1.1.1 h1:4JywC80b+/hSfljFlEBLHrrh+CIONLDz9NuFl0af4Mw=
+github.com/holiman/uint256 v1.1.1/go.mod h1:y4ga/t+u+Xwd7CpDgZESaRcWy0I7XMlTMA25ApIH5Jw=
 github.com/hpcloud/tail v1.0.0 h1:nfCOvKYfkgYP8hkirhJocXT2+zOD8yUNjXaWfTlyFKI=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
 github.com/huin/goupnp v1.0.0 h1:wg75sLpL6DZqwHQN6E1Cfk6mtfzS45z8OV+ic+DtHRo=