diff --git a/.github/workflows/check-wasm.yml b/.github/workflows/check-wasm.yml
index ca16f313..d420a46b 100644
--- a/.github/workflows/check-wasm.yml
+++ b/.github/workflows/check-wasm.yml
@@ -25,7 +25,7 @@ jobs:
         with:
           target: wasm32-unknown-unknown
           components: rust-src
-          toolchain: nightly-2024-01-01
+          toolchain: 1.79.0
 
       - uses: Swatinem/rust-cache@v2
 
diff --git a/.github/workflows/e2e-tests.yml b/.github/workflows/e2e-tests.yml
index 22fa1d85..17e0fe89 100644
--- a/.github/workflows/e2e-tests.yml
+++ b/.github/workflows/e2e-tests.yml
@@ -32,7 +32,7 @@ jobs:
         with:
           target: wasm32-unknown-unknown
           components: rust-src
-          toolchain: nightly-2024-01-01
+          toolchain: 1.79.0
 
       - uses: Swatinem/rust-cache@v2
         with:
@@ -50,6 +50,4 @@ jobs:
       - name: setup nitro node
         run: ./scripts/nitro-testnode.sh -d -i
       - name: run integration tests
-        run: |
-          export NIGHTLY_TOOLCHAIN=${{steps.toolchain.outputs.name}}
-          ./scripts/e2e-tests.sh
+        run: ./scripts/e2e-tests.sh
diff --git a/.github/workflows/gas-bench.yml b/.github/workflows/gas-bench.yml
index 7d572fc4..9f5fcb3d 100644
--- a/.github/workflows/gas-bench.yml
+++ b/.github/workflows/gas-bench.yml
@@ -25,7 +25,7 @@ jobs:
         with:
           target: wasm32-unknown-unknown
           components: rust-src
-          toolchain: nightly-2024-01-01
+          toolchain: 1.79.0
 
       - uses: Swatinem/rust-cache@v2
         with:
@@ -40,6 +40,4 @@ jobs:
       - name: setup nitro node
         run: ./scripts/nitro-testnode.sh -d -i
       - name: run benches
-        run: |
-          export NIGHTLY_TOOLCHAIN=${{steps.toolchain.outputs.name}}
-          ./scripts/bench.sh
+        run: ./scripts/bench.sh
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
new file mode 100644
index 00000000..628740b1
--- /dev/null
+++ b/rust-toolchain.toml
@@ -0,0 +1,2 @@
+[toolchain]
+channel = "1.79.0"
diff --git a/scripts/bench.sh b/scripts/bench.sh
index 8878daec..9d8e89a1 100755
--- a/scripts/bench.sh
+++ b/scripts/bench.sh
@@ -5,8 +5,7 @@ MYDIR=$(realpath "$(dirname "$0")")
 cd "$MYDIR"
 cd ..
 
-NIGHTLY_TOOLCHAIN=${NIGHTLY_TOOLCHAIN:-nightly}
-cargo +"$NIGHTLY_TOOLCHAIN" build --release --target wasm32-unknown-unknown -Z build-std=std,panic_abort -Z build-std-features=panic_immediate_abort
+cargo build --release --target wasm32-unknown-unknown -Z build-std=std,panic_abort -Z build-std-features=panic_immediate_abort
 
 export RPC_URL=http://localhost:8547
 cargo run --release -p benches
diff --git a/scripts/check-wasm.sh b/scripts/check-wasm.sh
index 1f6ce078..d8bc3f2d 100755
--- a/scripts/check-wasm.sh
+++ b/scripts/check-wasm.sh
@@ -22,9 +22,7 @@ get_example_crate_names () {
   find ./examples -maxdepth 2 -type f -name "Cargo.toml" | xargs grep 'name = ' | grep -oE '".*"' | tr -d "'\""
 }
 
-NIGHTLY_TOOLCHAIN=${NIGHTLY_TOOLCHAIN:-nightly}
-
-cargo +"$NIGHTLY_TOOLCHAIN" build --release --target wasm32-unknown-unknown -Z build-std=std,panic_abort -Z build-std-features=panic_immediate_abort
+cargo build --release --target wasm32-unknown-unknown -Z build-std=std,panic_abort -Z build-std-features=panic_immediate_abort
 
 for CRATE_NAME in $(get_example_crate_names)
 do
diff --git a/scripts/e2e-tests.sh b/scripts/e2e-tests.sh
index 3a26eacb..451c8750 100755
--- a/scripts/e2e-tests.sh
+++ b/scripts/e2e-tests.sh
@@ -5,10 +5,9 @@ MYDIR=$(realpath "$(dirname "$0")")
 cd "$MYDIR"
 cd ..
 
-NIGHTLY_TOOLCHAIN=${NIGHTLY_TOOLCHAIN:-nightly}
-cargo +"$NIGHTLY_TOOLCHAIN" build --release --target wasm32-unknown-unknown -Z build-std=std,panic_abort -Z build-std-features=panic_immediate_abort
+cargo build --release --target wasm32-unknown-unknown -Z build-std=std,panic_abort -Z build-std-features=panic_immediate_abort
 
 export RPC_URL=http://localhost:8547
 # We should use stable here once nitro-testnode is updated and the contracts fit
 # the size limit. Work tracked [here](https://github.com/OpenZeppelin/rust-contracts-stylus/issues/87)
-cargo +"$NIGHTLY_TOOLCHAIN" test --features std,e2e --test "*"
+cargo test --features std,e2e --test "*"