diff --git a/.gitignore b/.gitignore
index e69de29..5b59f35 100644
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1 @@
+/rmp-serde-0.13.7.crate
diff --git a/rmp-serde-0.13.7.crate b/rmp-serde-0.13.7.crate
deleted file mode 100644
index 7d09869..0000000
Binary files a/rmp-serde-0.13.7.crate and /dev/null differ
diff --git a/sources b/sources
index e69de29..fac55ce 100644
--- a/sources
+++ b/sources
@@ -0,0 +1 @@
+SHA512 (rmp-serde-0.13.7.crate) = e2659afd22446e26190008bca8cbf147e09eaeacd0518d81fd26c12e26d9fc06b48844719827cc392a882bb927d62e1d7d946a0426f81eac36cc882d8b0c2d28