diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index ac54c76..75304b0 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -53,11 +53,6 @@ jobs:
       - name: Check out repo
         uses: actions/checkout@v4
 
-      - name: Update packages
-        run: |
-          sudo apt update
-          sudo apt upgrade
-
       - name: Set up pnpm
         uses: pnpm/action-setup@v4
         with:
@@ -83,6 +78,9 @@ jobs:
       - name: Check out repo
         uses: actions/checkout@v4
 
+      - name: Set up env vars
+        run: echo "NDK_HOME=$ANDROID_NDK_HOME" >> $GITHUB_ENV
+
       - name: Update packages
         run: |
           sudo apt update
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
new file mode 100644
index 0000000..9b4e555
--- /dev/null
+++ b/rust-toolchain.toml
@@ -0,0 +1,3 @@
+[toolchain]
+# https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2404-Readme.md#rust-tools
+channel = "1.86.0"