diff --git a/go.mod b/go.mod
index 589bc0f..2ae0afc 100644
--- a/go.mod
+++ b/go.mod
@@ -2,4 +2,7 @@ module tildegit.org/solderpunk/molly-brown
 
 go 1.15
 
-require github.com/BurntSushi/toml v1.2.1 // indirect
+require (
+	github.com/BurntSushi/toml v1.2.1 // indirect
+	golang.org/x/sys v0.5.0 // indirect
+)
diff --git a/go.sum b/go.sum
index 4614a74..bd1f471 100644
--- a/go.sum
+++ b/go.sum
@@ -1,2 +1,4 @@
 github.com/BurntSushi/toml v1.2.1 h1:9F2/+DoOYIOksmaJFPw1tGFy1eDnIJXg+UHjuD8lTak=
 github.com/BurntSushi/toml v1.2.1/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
+golang.org/x/sys v0.5.0 h1:MUK/U/4lj1t1oPg0HfuXDN/Z1wv31ZJ/YcPiGccS4DU=
+golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=