'Why weren't the newest version of dependencies fetched?

I have added dependencies in a Rust project like this:

rust_wheel = { git = "https://github.com/jiangxiaoqiang/rust_wheel.git" }

When I built this project in GitHub Actions, I found it got the legacy version of rust_wheel:

   Compiling rust_wheel v0.1.0 (https://github.com/jiangxiaoqiang/rust_wheel.git#5dffd2f5)
error[E0412]: cannot find type `Json` in module `content`
  --> /usr/local/cargo/git/checkouts/rust_wheel-8476ff1b418e67f8/5dffd2f/src/common/util/model_convert.rs:35:50
   |
35 | pub fn box_rest_response<T>(data: T) -> content::Json<String> where T: Serialize + Default {
   |                                                  ^^^^ not found in `content`
   |
help: consider importing one of these items
   |
1  | use diesel::pg::types::sql_types::Json;

GitHub Actions got the version 5dffd2f5, but the newest version of rust_wheel was 52bccd9a4a3ece5cf9416510b7f8a4274d205da1. Why didn't it get the newest one? What should I do to make it get the newest versions of dependencies?

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'Why weren't the newest version of dependencies fetched?

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