diff --git a/.travis.yml b/.travis.yml
index 287dce8..cc94f50 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,10 +1,9 @@
 language: go
 
 go:
-  - 1.8.x
-  - 1.9.x
-  - 1.10.x
-  - 1.11.x
+  - 1.12.x
+  - 1.13.x
+  - 1.14.x
   - tip
 
 script:
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..690ef0c
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,5 @@
+module github.com/Luzifer/go-dhparam
+
+go 1.14
+
+require github.com/pkg/errors v0.9.1
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..7c401c3
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,2 @@
+github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
+github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=