diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..2c5c166
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,10 @@
+module go.wit.com/lib/cobol
+
+go 1.24.1
+
+require (
+	go.wit.com/log v0.25.1
+	golang.org/x/term v0.35.0
+)
+
+require golang.org/x/sys v0.36.0 // indirect
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..d4f6c86
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,6 @@
+go.wit.com/log v0.25.1 h1:74WVf9NSN6z5jc2oSbA1ehxdZ7V/NBXTk5t0jIoaTMg=
+go.wit.com/log v0.25.1/go.mod h1:XE4lTfAibWgwBJksIk7u3IEJ8xcBvNhnlewYAQGj2Ew=
+golang.org/x/sys v0.36.0 h1:KVRy2GtZBrk1cBYA7MKu5bEZFxQk4NIDV6RLVcC8o0k=
+golang.org/x/sys v0.36.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/term v0.35.0 h1:bZBVKBudEyhRcajGcNc3jIfWPqV4y/Kt2XcoigOWtDQ=
+golang.org/x/term v0.35.0/go.mod h1:TPGtkTLesOwf2DE8CgVYiZinHAOuy5AYUYT1lENIZnA=