diff --git a/Cargo.lock b/Cargo.lock
index b38a47f..de9a1fd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -754,7 +754,7 @@ checksum = "74765f6d916ee2faa39bc8e68e4f3ed8949b48cccdac59983d287a7cb71ce9c5"
 
 [[package]]
 name = "r621"
-version = "0.2.5"
+version = "0.2.5-rc1"
 dependencies = [
  "anyhow",
  "base64 0.21.7",