diff --git a/go.mod b/go.mod
index 8f71f57..e43822c 100644
--- a/go.mod
+++ b/go.mod
@@ -9,5 +9,5 @@ require (
 	github.com/lib/pq v1.10.3 // indirect
 	github.com/pkg/errors v0.8.0 // indirect
 	github.com/shopspring/decimal v1.3.1 // indirect
-	gopkg.in/guregu/null.v3 v3.0.2-0.20160228005316-41961cea0328
+	gopkg.in/guregu/null.v3 v3.5.0
 )
diff --git a/go.sum b/go.sum
index 69a98fe..7e63880 100644
--- a/go.sum
+++ b/go.sum
@@ -10,5 +10,5 @@ github.com/pkg/errors v0.8.0 h1:WdK/asTD0HN+q6hsWO3/vpuAkAr+tw6aNJNDFFf0+qw=
 github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/shopspring/decimal v1.3.1 h1:2Usl1nmF/WZucqkFZhnfFYxxxu8LG21F6nPQBE5gKV8=
 github.com/shopspring/decimal v1.3.1/go.mod h1:DKyhrW/HYNuLGql+MJL6WCR6knT2jwCFRcu2hWCYk4o=
-gopkg.in/guregu/null.v3 v3.0.2-0.20160228005316-41961cea0328 h1:hU8cvgSqUQ5u4yLmjxkBal15GhqW77yRklOkbEOlJ38=
-gopkg.in/guregu/null.v3 v3.0.2-0.20160228005316-41961cea0328/go.mod h1:E4tX2Qe3h7QdL+uZ3a0vqvYwKQsRSQKM5V4YltdgH9Y=
+gopkg.in/guregu/null.v3 v3.5.0 h1:xTcasT8ETfMcUHn0zTvIYtQud/9Mx5dJqD554SZct0o=
+gopkg.in/guregu/null.v3 v3.5.0/go.mod h1:E4tX2Qe3h7QdL+uZ3a0vqvYwKQsRSQKM5V4YltdgH9Y=