diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index f9c4040..b8940aa 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -40,12 +40,16 @@ jobs:
           - target: aarch64-unknown-linux-musl
           - target: aarch64-apple-darwin
             os: macos-12
+          - target: aarch64-pc-windows-msvc
+            os: windows-2019
           - target: x86_64-unknown-linux-gnu
           - target: x86_64-unknown-linux-musl
           - target: x86_64-apple-darwin
             os: macos-12
           - target: x86_64-pc-windows-msvc
             os: windows-2019
+          - target: x86_64-unknown-freebsd
+          - target: x86_64-unknown-illumos
           - target: universal-apple-darwin
             os: macos-12
     runs-on: ${{ matrix.os || 'ubuntu-20.04' }}
diff --git a/README.md b/README.md
index c16a73a..d932b52 100644
--- a/README.md
+++ b/README.md
@@ -630,7 +630,7 @@ cargo-llvm-cov requires Cargo 1.60+.
 ### From prebuilt binaries
 
 You can download prebuilt binaries from the [Release page](https://github.com/taiki-e/cargo-llvm-cov/releases).
-Prebuilt binaries are available for macOS, Linux (gnu and musl), and Windows (static executable).
+Prebuilt binaries are available for macOS, Linux (gnu and musl), Windows (static executable), FreeBSD, and illumos.
 
 <details>
 <summary>Example of script to download cargo-llvm-cov</summary>