diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6b80e0f..b06ce93 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -2,16 +2,22 @@ name: Rust
 
 on:
   push:
-    branches: [ "main" ]
+    branches: ["main"]
   pull_request:
-    branches: [ "main" ]
+    branches: ["main"]
 
 env:
   CARGO_TERM_COLOR: always
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        os:
+          - ubuntu-latest
+          - macos-latest
+          - windows-latest
+    runs-on: ${{matrix.os}}
     steps:
     - uses: actions/checkout@v4
     - name: Build
diff --git a/src/lib_tests.rs b/src/lib_tests.rs
index 2538011..e0b0a72 100644
--- a/src/lib_tests.rs
+++ b/src/lib_tests.rs
@@ -63,6 +63,7 @@ mod tests {
         };
     }
 
+    #[cfg(not(target_os = "windows"))]
     #[test]
     fn test_load_pnp_manifest() {
         load_pnp_manifest("data/pnp-yarn-v3.cjs")
@@ -72,6 +73,7 @@ mod tests {
             .expect("Assertion failed: Expected to load the .pnp.cjs file generated by Yarn 4");
     }
 
+    #[cfg(not(target_os = "windows"))]
     #[test]
     fn test_resolve_unqualified() {
         let expectations_path = std::env::current_dir()
@@ -150,7 +152,6 @@ mod tests {
         }
     }
 
-
     #[test]
     fn test_parse_single_package_name() {
         let parsed = parse_bare_identifier("pkg");