diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 23a5c813e..506a244b0 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -29,7 +29,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        toolchain: [1.81.0]
+        toolchain: [1.80.1]
         target:
           - x86_64-unknown-linux-gnu
           - x86_64-unknown-linux-musl
@@ -65,7 +65,7 @@ jobs:
             run-integration-tests: true
             supports-nix: true
           - os: macos-latest # aarch64
-            toolchain: 1.81.0
+            toolchain: 1.80.1
             target: aarch64-apple-darwin
             use-cross: false
             run-integration-tests: true
@@ -88,7 +88,7 @@ jobs:
         if: ${{ matrix.target == 'x86_64-unknown-linux-musl'}}
 
       - name: Install Rust toolchain
-        uses: dtolnay/rust-toolchain@1.81.0
+        uses: dtolnay/rust-toolchain@1.80.1
         with:
           toolchain: ${{ matrix.toolchain }}
           target: ${{ matrix.target }}
@@ -429,9 +429,9 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Rust toolchain
-        uses: dtolnay/rust-toolchain@1.81.0
+        uses: dtolnay/rust-toolchain@1.80.1
         with:
-          toolchain: 1.81.0
+          toolchain: 1.80.1
           target: wasm32-unknown-unknown
 
       - uses: actions/setup-node@v4
@@ -454,9 +454,9 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Rust toolchain
-        uses: dtolnay/rust-toolchain@1.81.0
+        uses: dtolnay/rust-toolchain@1.80.1
         with:
-          toolchain: 1.81.0
+          toolchain: 1.80.1
           components: rustfmt
 
       - run: cargo fmt --all -- --check
@@ -470,9 +470,9 @@ jobs:
   #        uses: actions/checkout@v4
   #
   #      - name: Install Rust toolchain
-  #        uses: dtolnay/rust-toolchain@1.81.0
+  #        uses: dtolnay/rust-toolchain@1.80.1
   #        with:
-  #          toolchain: 1.81.0
+  #          toolchain: 1.80.1
   #
   #      - name: Install cargo-deny
   #        run: |
@@ -493,9 +493,9 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Rust toolchain
-        uses: dtolnay/rust-toolchain@1.81.0
+        uses: dtolnay/rust-toolchain@1.80.1
         with:
-          toolchain: 1.81.0
+          toolchain: 1.80.1
           components: clippy
 
       - name: Handle Rust dependencies caching
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 40ef88524..d35e1183d 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -24,7 +24,7 @@ jobs:
           - x86_64-apple-darwin
           - aarch64-apple-darwin
           - x86_64-pc-windows-msvc
-        toolchain: [1.81.0]
+        toolchain: [1.80.1]
         include:
           - os: ubuntu-latest
             target: x86_64-unknown-linux-musl
@@ -47,7 +47,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Rust toolchain
-        uses: dtolnay/rust-toolchain@1.81.0
+        uses: dtolnay/rust-toolchain@1.80.1
         with:
           toolchain: ${{ matrix.toolchain }}
           target: ${{ matrix.target }}
@@ -124,7 +124,7 @@ jobs:
       - name: Install Rust toolchain
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: 1.81.0
+          toolchain: 1.80.1
           target: wasm32-unknown-unknown
           profile: minimal
           override: true
diff --git a/.github/workflows/test-build.yaml b/.github/workflows/test-build.yaml
index 9a64268c7..14a1df7de 100644
--- a/.github/workflows/test-build.yaml
+++ b/.github/workflows/test-build.yaml
@@ -19,7 +19,7 @@ jobs:
           - x86_64-apple-darwin
           - aarch64-apple-darwin
           - x86_64-pc-windows-msvc
-        toolchain: [1.81.0]
+        toolchain: [1.80.1]
         include:
           - os: ubuntu-latest
             target: x86_64-unknown-linux-musl
@@ -44,7 +44,7 @@ jobs:
           fetch-depth: 0
 
       - name: Install Rust toolchain
-        uses: dtolnay/rust-toolchain@1.81.0
+        uses: dtolnay/rust-toolchain@1.80.1
         with:
           toolchain: ${{ matrix.toolchain }}
           target: ${{ matrix.target }}
@@ -121,7 +121,7 @@ jobs:
       - name: Install Rust toolchain
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: 1.81.0
+          toolchain: 1.80.1
           target: wasm32-unknown-unknown
           profile: minimal
           override: true
diff --git a/flake.lock b/flake.lock
index df24f4c08..bc93d9316 100644
--- a/flake.lock
+++ b/flake.lock
@@ -95,13 +95,13 @@
     "rust-manifest": {
       "flake": false,
       "locked": {
-        "narHash": "sha256-tB9BZB6nRHDk5ELIVlGYlIjViLKBjQl52nC1avhcCwA=",
+        "narHash": "sha256-3EJkGxF108nDakQ5ZlSQezA8XJMIEk/c9aLDPAUfybM=",
         "type": "file",
-        "url": "https://static.rust-lang.org/dist/channel-rust-1.81.0.toml"
+        "url": "https://static.rust-lang.org/dist/channel-rust-1.80.1.toml"
       },
       "original": {
         "type": "file",
-        "url": "https://static.rust-lang.org/dist/channel-rust-1.81.0.toml"
+        "url": "https://static.rust-lang.org/dist/channel-rust-1.80.1.toml"
       }
     },
     "systems": {
diff --git a/flake.nix b/flake.nix
index dcb900ff6..4042cad18 100644
--- a/flake.nix
+++ b/flake.nix
@@ -7,7 +7,7 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
     rust-manifest = {
-      url = "https://static.rust-lang.org/dist/channel-rust-1.81.0.toml";
+      url = "https://static.rust-lang.org/dist/channel-rust-1.80.1.toml";
       flake = false;
     };
   };