diff --git a/rustfmt-core/Cargo.toml b/rustfmt-core/Cargo.toml
index 2cf72e3f210..b1ef2edd345 100644
--- a/rustfmt-core/Cargo.toml
+++ b/rustfmt-core/Cargo.toml
@@ -18,7 +18,7 @@ log = "0.3"
 regex = "0.2"
 rustc-ap-syntax = "29.0.0"
 rustc-ap-rustc_errors = "29.0.0"
-rustfmt-config = { path = "../rustfmt-config" }
+rustfmt-config = "0.4.0"
 term = "0.4"
 unicode-segmentation = "1.0.0"
 
diff --git a/rustfmt-core/README.md b/rustfmt-core/README.md
new file mode 100644
index 00000000000..7421de1fe90
--- /dev/null
+++ b/rustfmt-core/README.md
@@ -0,0 +1,3 @@
+# rustfmt-core
+
+Core formatting functionality for Rustfmt