diff --git a/.github/workflows/ci-post-merge.yml b/.github/workflows/ci-post-merge.yml
index b70c31d1..bf1a3d0f 100644
--- a/.github/workflows/ci-post-merge.yml
+++ b/.github/workflows/ci-post-merge.yml
@@ -52,7 +52,7 @@ jobs:
           echo 'OPENSSL_DIR=C:\Program Files\OpenSSL' | Out-File -FilePath $env:GITHUB_ENV -Append
 
       - name: Install Rust (${{ matrix.version }})
-        uses: actions-rust-lang/setup-rust-toolchain@v1.5.0
+        uses: actions-rust-lang/setup-rust-toolchain@v1.6.0
         with:
           toolchain: ${{ matrix.version }}
 
@@ -111,7 +111,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install Rust (nightly)
-        uses: actions-rust-lang/setup-rust-toolchain@v1.5.0
+        uses: actions-rust-lang/setup-rust-toolchain@v1.6.0
         with:
           toolchain: nightly
 
@@ -130,7 +130,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install Rust
-        uses: actions-rust-lang/setup-rust-toolchain@v1.5.0
+        uses: actions-rust-lang/setup-rust-toolchain@v1.6.0
 
       - name: Install cargo-nextest
         uses: taiki-e/install-action@v2.21.20
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e95c9d01..d8a82634 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -54,7 +54,7 @@ jobs:
           echo 'OPENSSL_DIR=C:\Program Files\OpenSSL' | Out-File -FilePath $env:GITHUB_ENV -Append
 
       - name: Install Rust (${{ matrix.version.name }})
-        uses: actions-rust-lang/setup-rust-toolchain@v1.5.0
+        uses: actions-rust-lang/setup-rust-toolchain@v1.6.0
         with:
           toolchain: ${{ matrix.version.version }}
 
@@ -128,7 +128,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install Rust (nightly)
-        uses: actions-rust-lang/setup-rust-toolchain@v1.5.0
+        uses: actions-rust-lang/setup-rust-toolchain@v1.6.0
         with:
           toolchain: nightly
 
diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index 0cc26052..cdb7918a 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@v1.5.0
+        uses: actions-rust-lang/setup-rust-toolchain@v1.6.0
         with:
           components: llvm-tools-preview
 
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 4cfbd39a..bfbfd4b8 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -18,7 +18,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: actions-rust-lang/setup-rust-toolchain@v1.5.0
+      - uses: actions-rust-lang/setup-rust-toolchain@v1.6.0
         with:
           toolchain: nightly
           components: rustfmt
@@ -35,7 +35,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: actions-rust-lang/setup-rust-toolchain@v1.5.0
+      - uses: actions-rust-lang/setup-rust-toolchain@v1.6.0
         with: { components: clippy }
 
       - uses: giraffate/clippy-action@v1.0.1
@@ -50,7 +50,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install Rust (nightly-2023-10-10)
-        uses: actions-rust-lang/setup-rust-toolchain@v1.5.0
+        uses: actions-rust-lang/setup-rust-toolchain@v1.6.0
         with:
           toolchain: nightly-2023-10-10
 
diff --git a/.github/workflows/upload-doc.yml b/.github/workflows/upload-doc.yml
index f54fdf6a..30a537f8 100644
--- a/.github/workflows/upload-doc.yml
+++ b/.github/workflows/upload-doc.yml
@@ -20,7 +20,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: actions-rust-lang/setup-rust-toolchain@v1.5.0
+      - uses: actions-rust-lang/setup-rust-toolchain@v1.6.0
         with: { toolchain: nightly }
 
       - name: Build Docs