diff --git a/go.mod b/go.mod
index 8f7e42b..5df51b4 100644
--- a/go.mod
+++ b/go.mod
@@ -2,4 +2,4 @@ module github.com/mattn/goveralls
 
 go 1.11
 
-require golang.org/x/tools v0.0.0-20200115230748-a7dab0268b5f
+require golang.org/x/tools v0.0.0-20200203175837-a014e0aa6a8b
diff --git a/go.sum b/go.sum
index eb6e8d1..0332329 100644
--- a/go.sum
+++ b/go.sum
@@ -15,5 +15,7 @@ golang.org/x/tools v0.0.0-20200113040837-eac381796e91 h1:OOkytthzFBKHY5EfEgLUabp
 golang.org/x/tools v0.0.0-20200113040837-eac381796e91/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/tools v0.0.0-20200115230748-a7dab0268b5f h1:NpM/3jXkRPegnt/me9EqO3YbnrKCSrbJKm+b71OLh34=
 golang.org/x/tools v0.0.0-20200115230748-a7dab0268b5f/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
+golang.org/x/tools v0.0.0-20200203175837-a014e0aa6a8b h1:IQYWxhQ51qln8ReEPdTiOcWrELEg/2wAtb2CJIHWxoU=
+golang.org/x/tools v0.0.0-20200203175837-a014e0aa6a8b/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=