diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 2a033a8197..2a9d4ab81a 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -60,5 +60,5 @@ jobs:
           # here... But without that, the toolchain is just not there!
           # I will spend more time on debugging this once I can afford burning
           # more hours.
-          rustup toolchain install nightly --component clippy,rustfmt
+          rustup toolchain install nightly-2024-02-01 --component clippy,rustfmt
           ./scripts/lint.sh
diff --git a/scripts/format.sh b/scripts/format.sh
index 1134da760e..fb652ad3d4 100755
--- a/scripts/format.sh
+++ b/scripts/format.sh
@@ -5,5 +5,5 @@ set -e
 npx nx run-many --target=format --all
 npx nx run-many --target=lint:fix --all
 
-cargo +nightly fmt --all
-cargo clippy --exclude macro-circom --all -- -A clippy::result_large_err -D warnings
\ No newline at end of file
+cargo +nightly-2024-02-01 fmt --all
+cargo clippy --exclude macro-circom --all -- -A clippy::result_large_err -D warnings
diff --git a/scripts/install.sh b/scripts/install.sh
index be3e999d92..c9ae053431 100755
--- a/scripts/install.sh
+++ b/scripts/install.sh
@@ -178,7 +178,7 @@ export PATH="${PREFIX}/cargo/bin:${PATH}"
 
 rustup component add clippy
 rustup component add rustfmt
-rustup toolchain install nightly --component clippy,rustfmt
+rustup toolchain install nightly-2024-02-01 --component clippy,rustfmt
 
 cargo install cargo-expand wasm-pack
 
diff --git a/scripts/lint.sh b/scripts/lint.sh
index 5b264c1c66..b366b4705f 100755
--- a/scripts/lint.sh
+++ b/scripts/lint.sh
@@ -4,7 +4,7 @@ set -e
 npx nx run-many --target=format:check --all
 npx nx run-many --target=lint --all
 
-for rust_toolchain in stable nightly; do
+for rust_toolchain in stable nightly-2024-02-01; do
     cargo +"$rust_toolchain" fmt --all -- --check
     cargo +"$rust_toolchain" clippy \
       --workspace \