diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a1ea44a..e82b855 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,6 +23,8 @@ jobs:
       run: cargo test --verbose
   build-wasm:
     runs-on: ubuntu-latest
+    env: 
+      RUSTFLAGS: "--cfg=web_sys_unstable_apis"
     steps:
     - uses: actions/checkout@v4
     - uses: Swatinem/rust-cache@v2
@@ -38,6 +40,8 @@ jobs:
     runs-on: ubuntu-latest
     if: github.ref == 'refs/heads/main'
     needs: build-wasm
+    env: 
+      RUSTFLAGS: "--cfg=web_sys_unstable_apis"
     steps:
     - uses: actions/checkout@v4
     - uses: Swatinem/rust-cache@v2