diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 1d9bb8656..0fd28eba8 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -13,7 +13,7 @@ jobs:
           - stable
           - beta
           - nightly
-          - "1.66"
+          - "1.70"
         target:
           - x86_64-unknown-linux-gnu
           - x86_64-unknown-linux-musl
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 16815d975..a9d3eb554 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -16,29 +16,29 @@ jobs:
       - name: Install Rust toolchain (x86_64-unknown-linux-gnu)
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: "1.67.1"
+          toolchain: "1.70"
           target: x86_64-unknown-linux-gnu
       - name: Install Rust toolchain (x86_64-unknown-linux-musl)
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: "1.67.1"
+          toolchain: "1.70"
           target: x86_64-unknown-linux-musl
       - name: Build
         uses: actions-rs/cargo@v1
         with:
-          toolchain: "1.67.1"
+          toolchain: "1.70"
           command: build
           args: --all --release --features mshv --target=x86_64-unknown-linux-gnu
       - name: Static Build
         uses: actions-rs/cargo@v1
         with:
-          toolchain: "1.67.1"
+          toolchain: "1.70"
           command: build
           args: --all --release --features mshv --target=x86_64-unknown-linux-musl
       - name: Install Rust toolchain (aarch64-unknown-linux-musl)
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: "1.67.1"
+          toolchain: "1.70"
           target: aarch64-unknown-linux-musl
           override: true
       - name: Create Release
diff --git a/Cargo.toml b/Cargo.toml
index 547bccc28..612ab90ea 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,7 +15,7 @@ homepage = "https://github.com/cloud-hypervisor/cloud-hypervisor"
 # a.) A dependency requires it,
 # b.) If we want to use a new feature and that MSRV is at least 6 months old,
 # c.) There is a security issue that is addressed by the toolchain update.
-rust-version = "1.66"
+rust-version = "1.70"
 
 [profile.release]
 lto = true