diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index a3a2627..c367da4 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -2,6 +2,9 @@ name: 'Linux, macOS and Windows'
 on: [push, pull_request]
 jobs:
   lint:
+    strategy:
+      matrix:
+        go: ['1.12', '1.13']
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
@@ -9,21 +12,21 @@ jobs:
       - name: Set up Go 1.12
         uses: actions/setup-go@v1
         with:
-          go-version: '1.12'
+          go-version: ${{ matrix.os }}
       - name: Lint source code
         env:
           MAGEFILE_VERBOSE: true
         run: |
           GOBIN="$(pwd)/bin" go install github.com/magefile/mage
-          ./bin/mage -d tools install
-          ./bin/mage -d tools lint
+          ./bin/mage install
+          ./bin/mage lint
 
   test:
     needs: lint
     strategy:
       matrix:
         os: [macOS-latest, ubuntu-latest, windows-latest]
-        go: ['1.11', '1.12']
+        go: ['1.11', '1.12', '1.13']
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v1
@@ -38,4 +41,4 @@ jobs:
         shell: bash
         run: |
           GOBIN="$(pwd)/bin" go install github.com/magefile/mage
-          ./bin/mage -d tools test
+          ./bin/mage test
diff --git a/go.mod b/go.mod
index b5e1e47..1faecd4 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/gbrlsnchs/jwt/v3
 go 1.10
 
 require (
-	github.com/magefile/mage v1.8.0
+	github.com/magefile/mage v1.9.0
 	golang.org/x/crypto v0.0.0-20190829043050-9756ffdc2472
 	golang.org/x/lint v0.0.0-20190409202823-959b441ac422
 	golang.org/x/tools v0.0.0-20190710153321-831012c29e42
diff --git a/go.sum b/go.sum
index 884cbf9..b4cfa35 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,7 @@
 github.com/magefile/mage v1.8.0 h1:mzL+xIopvPURVBwHG9A50JcjBO+xV3b5iZ7khFRI+5E=
 github.com/magefile/mage v1.8.0/go.mod h1:IUDi13rsHje59lecXokTfGX0QIzO45uVPlXnJYsXepA=
+github.com/magefile/mage v1.9.0 h1:t3AU2wNwehMCW97vuqQLtw6puppWXHO+O2MHo5a50XE=
+github.com/magefile/mage v1.9.0/go.mod h1:z5UZb/iS3GoOSn0JgWuiw7dxlurVYTu+/jHXqQg881A=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2 h1:VklqNMn3ovrHsnt90PveolxSbWFaJdECFbxSq0Mqo2M=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20190829043050-9756ffdc2472 h1:Gv7RPwsi3eZ2Fgewe3CBsuOebPwO27PoXzRpJPsvSSM=
diff --git a/tools/magefile.go b/magefile.go
similarity index 100%
rename from tools/magefile.go
rename to magefile.go