diff --git a/go.mod b/go.mod
index 57f773b1..dad81ebe 100644
--- a/go.mod
+++ b/go.mod
@@ -7,7 +7,7 @@ require (
 	github.com/jackc/pgio v1.0.0
 	github.com/jackc/pgmock v0.0.0-20201204152224-4fe30f7445fd
 	github.com/jackc/pgpassfile v1.0.0
-	github.com/jackc/pgproto3/v2 v2.1.0
+	github.com/jackc/pgproto3/v2 v2.1.1
 	github.com/jackc/pgservicefile v0.0.0-20200714003250-2b9c44734f2b
 	github.com/stretchr/testify v1.7.0
 	golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e
diff --git a/go.sum b/go.sum
index eedcac1b..54405c28 100644
--- a/go.sum
+++ b/go.sum
@@ -31,6 +31,8 @@ github.com/jackc/pgproto3/v2 v2.0.0-rc3.0.20190831210041-4c03ce451f29/go.mod h1:
 github.com/jackc/pgproto3/v2 v2.0.6/go.mod h1:WfJCnwN3HIg9Ish/j3sgWXnAfK8A9Y0bwXYU5xKaEdA=
 github.com/jackc/pgproto3/v2 v2.1.0 h1:h2yg3kjIyAGSZKDijYn1/gXHlYLCwl9ZjEh2PU0yVxE=
 github.com/jackc/pgproto3/v2 v2.1.0/go.mod h1:WfJCnwN3HIg9Ish/j3sgWXnAfK8A9Y0bwXYU5xKaEdA=
+github.com/jackc/pgproto3/v2 v2.1.1 h1:7PQ/4gLoqnl87ZxL7xjO0DR5gYuviDCZxQJsUlFW1eI=
+github.com/jackc/pgproto3/v2 v2.1.1/go.mod h1:WfJCnwN3HIg9Ish/j3sgWXnAfK8A9Y0bwXYU5xKaEdA=
 github.com/jackc/pgservicefile v0.0.0-20200714003250-2b9c44734f2b h1:C8S2+VttkHFdOOCXJe+YGfa4vHYwlt4Zx+IVXQ97jYg=
 github.com/jackc/pgservicefile v0.0.0-20200714003250-2b9c44734f2b/go.mod h1:vsD4gTJCa9TptPL8sPkXrLZ+hDuNrZCnj29CQpr4X1E=
 github.com/jackc/pgtype v0.0.0-20190421001408-4ed0de4755e0/go.mod h1:hdSHsc1V01CGwFsrv11mJRHWJ6aifDLfdV3aVjFF0zg=