diff --git a/shard.yml b/shard.yml
new file mode 100644
index 0000000..3aaab8a
--- /dev/null
+++ b/shard.yml
@@ -0,0 +1,13 @@
+name: advent-2019
+version: 0.1.0
+
+authors:
+  - your-name-here <your-email-here>
+
+dependencies:
+  advent:
+    git: https://dev.danilafe.com/Advent-of-Code/advent
+
+crystal: 0.35.1
+
+license: MIT