diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..697bdbb
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,8 @@
+[workspace]
+
+members = [
+    "day1",
+    "day2",
+    "day3",
+    "day4"
+]
\ No newline at end of file