diff --git a/Cargo.toml b/Cargo.toml
index 3938c05d..06d67841 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,11 +1,11 @@
 [package]
 name = "tree-sitter-php"
-description = "php grammar for the tree-sitter parsing library"
 version = "0.19.1"
+description = "PHP grammar for tree-sitter"
 keywords = ["incremental", "parsing", "php"]
 categories = ["parsing", "text-editors"]
 repository = "https://github.com/tree-sitter/tree-sitter-php"
-edition = "2018"
+edition = "2021"
 license = "MIT"
 
 build = "bindings/rust/build.rs"
@@ -15,7 +15,7 @@ include = ["bindings/rust/*", "grammar.js", "queries/*", "src/*"]
 path = "bindings/rust/lib.rs"
 
 [dependencies]
-tree-sitter = ">= 0.20, < 0.21"
+tree-sitter = "~0.20.10"
 
 [build-dependencies]
-cc = "1.0"
+cc = "~1.0.83"
diff --git a/bindings/rust/README.md b/bindings/rust/README.md
index 1d698005..d1b23775 100644
--- a/bindings/rust/README.md
+++ b/bindings/rust/README.md
@@ -1,50 +1,43 @@
-# tree-sitter-php
+# tree-sitter-c
 
-This crate provides support of the PHP language for the [tree-sitter][] parsing library. To use this crate, add it to
-the `[dependencies]` section of your
-`Cargo.toml` file. As this crate is not (yet) published to the central registry, you will have to specify it as a git
-dependency, currently we suggest using the `master` branch.
+This crate provides a C grammar for the [tree-sitter][] parsing library. To
+use this crate, add it to the `[dependencies]` section of your `Cargo.toml`
+file. (Note that you will probably also need to depend on the
+[`tree-sitter`][tree-sitter crate] crate to use the parsed result in any useful
+way.)
 
-You will also need the [tree-sitter crate][] to do the actual parsing here.
-
-``` toml
+```toml
 [dependencies]
-tree-sitter = "0.19"
-tree-sitter-php = { git = "https://github.com/tree-sitter/tree-sitter-php.git", branch = "master" }
+tree-sitter = "0.20.10"
+tree-sitter-php = "0.20.6"
 ```
 
-To you the parser, you need to obtain an instance of a [`tree_sitter::Language`][Language] struct for php.
-The `language()` function provides this.
-Passing this struct to a [`tree_sitter::Parser`][Parser] will enable it to parse PHP.
+Typically, you will use the [language][language func] function to add this
+grammar to a tree-sitter [Parser][], and then use the parser to parse some code:
 
-``` rust
+```rust
 use tree_sitter::Parser;
 
 fn main() {
     let code = r#"
     <?php
-    
+
     function double(int $x) {
         return $x * 2;
     }
 "#;
     let mut parser = Parser::new();
-    parser
-        .set_language(tree_sitter_php::language())
-        .expect("Error loading PHP parsing support");
+    parser.set_language(tree_sitter_php::language()).expect("Error loading PHP grammar");
     let parsed = parser.parse(code, None);
     println!("{:#?}", parsed);
 }
 ```
 
-If you have any questions, please reach out to us in the [tree-sitter discussions] page.
-
-[Language]: https://docs.rs/tree-sitter/*/tree_sitter/struct.Language.html
+If you have any questions, please reach out to us in the [tree-sitter
+discussions] page.
 
+[language func]: https://docs.rs/tree-sitter-c/*/tree_sitter_c/fn.language.html
 [Parser]: https://docs.rs/tree-sitter/*/tree_sitter/struct.Parser.html
-
 [tree-sitter]: https://tree-sitter.github.io/
-
 [tree-sitter crate]: https://crates.io/crates/tree-sitter
-
 [tree-sitter discussions]: https://github.com/tree-sitter/tree-sitter/discussions