diff --git a/.gitea/workflows/release.yml b/.gitea/workflows/release.yml
index b6daf18..d075af9 100644
--- a/.gitea/workflows/release.yml
+++ b/.gitea/workflows/release.yml
@@ -81,13 +81,13 @@ jobs:
           rustc -V
           cargo -V
           mkdir -p "$HOME/.cargo"
-          cat >"$HOME/.cargo/config.toml" <<'EOF'
-[source.crates-io]
-replace-with = "rsproxy-sparse"
-
-[source.rsproxy-sparse]
-registry = "sparse+https://rsproxy.cn/index/"
-EOF
+          printf '%s\n' \
+            '[source.crates-io]' \
+            'replace-with = "rsproxy-sparse"' \
+            '' \
+            '[source.rsproxy-sparse]' \
+            'registry = "sparse+https://rsproxy.cn/index/"' \
+            >"$HOME/.cargo/config.toml"
 
       - name: 构建发布包
         env: