diff --git a/.github/workflows/ci-post-merge.yml b/.github/workflows/ci-post-merge.yml
index 4231b4dc2..43fc641f7 100644
--- a/.github/workflows/ci-post-merge.yml
+++ b/.github/workflows/ci-post-merge.yml
@@ -44,7 +44,7 @@ jobs:
           echo "RUSTFLAGS=-C target-feature=+crt-static" >> $GITHUB_ENV
 
       - name: Install Rust (${{ matrix.version.name }})
-        uses: actions-rust-lang/setup-rust-toolchain@v1.8.0
+        uses: actions-rust-lang/setup-rust-toolchain@v1.9.0
         with:
           toolchain: ${{ matrix.version.version }}
 
@@ -77,7 +77,7 @@ jobs:
         run: ./scripts/free-disk-space.sh
 
       - name: Install Rust
-        uses: actions-rust-lang/setup-rust-toolchain@v1.8.0
+        uses: actions-rust-lang/setup-rust-toolchain@v1.9.0
 
       - name: Install cargo-hack
         uses: taiki-e/install-action@v2.34.0
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ab611fc0a..c6a12a441 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -59,7 +59,7 @@ jobs:
         uses: rui314/setup-mold@v1
 
       - name: Install Rust (${{ matrix.version.name }})
-        uses: actions-rust-lang/setup-rust-toolchain@v1.8.0
+        uses: actions-rust-lang/setup-rust-toolchain@v1.9.0
         with:
           toolchain: ${{ matrix.version.version }}
 
@@ -92,7 +92,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install Rust
-        uses: actions-rust-lang/setup-rust-toolchain@v1.8.0
+        uses: actions-rust-lang/setup-rust-toolchain@v1.9.0
         with:
           toolchain: nightly
 
@@ -108,7 +108,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install Rust (nightly)
-        uses: actions-rust-lang/setup-rust-toolchain@v1.8.0
+        uses: actions-rust-lang/setup-rust-toolchain@v1.9.0
         with:
           toolchain: nightly
 
diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index da892bd7a..d518f7e26 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -18,7 +18,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install Rust
-        uses: actions-rust-lang/setup-rust-toolchain@v1.8.0
+        uses: actions-rust-lang/setup-rust-toolchain@v1.9.0
         with:
           components: llvm-tools-preview
 
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index dd44d4cb3..91c57266f 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -18,7 +18,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install Rust (nightly)
-        uses: actions-rust-lang/setup-rust-toolchain@v1.8.0
+        uses: actions-rust-lang/setup-rust-toolchain@v1.9.0
         with:
           toolchain: nightly
           components: rustfmt
@@ -36,7 +36,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install Rust
-        uses: actions-rust-lang/setup-rust-toolchain@v1.8.0
+        uses: actions-rust-lang/setup-rust-toolchain@v1.9.0
         with:
           components: clippy
 
@@ -55,7 +55,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install Rust (nightly)
-        uses: actions-rust-lang/setup-rust-toolchain@v1.8.0
+        uses: actions-rust-lang/setup-rust-toolchain@v1.9.0
         with:
           toolchain: nightly
           components: rust-docs
@@ -77,7 +77,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Rust
-        uses: actions-rust-lang/setup-rust-toolchain@v1.8.0
+        uses: actions-rust-lang/setup-rust-toolchain@v1.9.0
         with:
           toolchain: nightly-2024-06-07