diff --git a/Cargo.lock b/Cargo.lock
index 17c523cd..47201c19 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -298,9 +298,9 @@ dependencies = [
 
 [[package]]
 name = "cramjam-python"
-version = "2.8.3"
+version = "2.8.3-rc1"
 dependencies = [
- "libcramjam 0.3.0",
+ "libcramjam 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "pyo3",
  "pyo3-build-config",
 ]
@@ -503,6 +503,23 @@ dependencies = [
  "zstd",
 ]
 
+[[package]]
+name = "libcramjam"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "45a1a8afbfdfd38e028da85e377178c3dcce4af6ea8fc8a0db0af6e20f36f643"
+dependencies = [
+ "brotli",
+ "bzip2",
+ "cbindgen",
+ "flate2",
+ "libdeflater",
+ "lz4",
+ "snap",
+ "xz2",
+ "zstd",
+]
+
 [[package]]
 name = "libdeflate-sys"
 version = "1.19.3"
diff --git a/cramjam-python/Cargo.toml b/cramjam-python/Cargo.toml
index 367d68e7..8009b131 100644
--- a/cramjam-python/Cargo.toml
+++ b/cramjam-python/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "cramjam-python"
-version = "2.8.3"
+version = "2.8.3-rc1"
 authors = ["Miles Granger <miles59923@gmail.com>"]
 edition = "2021"
 license = "MIT"