diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index f149564..934b3c4 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v3
-      - uses: dtolnay/rust-toolchain@master
+      - uses: dtolnay/rust-toolchain@stable
         with:
           toolchain: stable
       - run: cargo test --all
diff --git a/Cargo.toml b/Cargo.toml
index 33005bd..3d67a00 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -23,7 +23,7 @@ categories = ["embedded"]
 [dependencies]
 libloading = { version = "0.8", optional = true }
 
-rhai = { version = "1.18", features = [
+rhai = { version = "1.19", features = [
     "internals", # Used to implement the ModuleResolver trait.
 ] }