diff --git a/.github/workflows/check_tests.yml b/.github/workflows/check_tests.yml
index 9b41aeaa7..e79e9423e 100644
--- a/.github/workflows/check_tests.yml
+++ b/.github/workflows/check_tests.yml
@@ -70,10 +70,9 @@ jobs:
           curl -s https://sh.rustup.rs -sSf | sh -s -- -y
           source ${HOME}/.cargo/env
           rustup toolchain install stable
-          rustup toolchain install nightly
           rustup default stable
-          rustup target add wasm32-unknown-unknown --toolchain nightly
           rustup update
+          rustup target add wasm32-unknown-unknown
       - name: Run Unit Tests
         env:
           RUST_BACKTRACE: full
@@ -82,7 +81,7 @@ jobs:
           SCCACHE_DIR: /home/runner/.cache/sccache
         run: |
           source ${HOME}/.cargo/env
-          cargo test --release --features=runtime-benchmarks,try-runtime -- --test-threads=2
+          RUSTC_BOOTSTRAP=1 cargo test --release --features=runtime-benchmarks,try-runtime -- --test-threads=2
       - name: stop sccache server
         run: sccache --stop-server || true
   stop-unit-test-checks:
diff --git a/.github/workflows/generate_calamari_weights_files.yml b/.github/workflows/generate_calamari_weights_files.yml
index 2940395b2..5df421818 100644
--- a/.github/workflows/generate_calamari_weights_files.yml
+++ b/.github/workflows/generate_calamari_weights_files.yml
@@ -49,10 +49,9 @@ jobs:
           curl -s https://sh.rustup.rs -sSf | sh -s -- -y
           source ${HOME}/.cargo/env
           rustup toolchain install stable
-          rustup toolchain install nightly
           rustup default stable
-          rustup target add wasm32-unknown-unknown --toolchain nightly
           rustup update
+          rustup target add wasm32-unknown-unknown
       - name: build
         env:
           RUST_BACKTRACE: full
@@ -62,7 +61,7 @@ jobs:
           CARGO_TERM_COLOR: always
         run: |
           source ${HOME}/.cargo/env
-          cargo build --profile production --verbose --features=runtime-benchmarks
+          RUSTC_BOOTSTRAP=1 cargo build --profile production --verbose --features=runtime-benchmarks
       - name: stop sccache server
         run: sccache --stop-server || true
       - name: upload
diff --git a/.github/workflows/generate_dolphin_weights_files.yml b/.github/workflows/generate_dolphin_weights_files.yml
index bf82abd10..9cd1314b5 100644
--- a/.github/workflows/generate_dolphin_weights_files.yml
+++ b/.github/workflows/generate_dolphin_weights_files.yml
@@ -49,10 +49,9 @@ jobs:
           curl -s https://sh.rustup.rs -sSf | sh -s -- -y
           source ${HOME}/.cargo/env
           rustup toolchain install stable
-          rustup toolchain install nightly
           rustup default stable
-          rustup target add wasm32-unknown-unknown --toolchain nightly
           rustup update
+          rustup target add wasm32-unknown-unknown
       - name: build
         env:
           RUST_BACKTRACE: full
@@ -62,7 +61,7 @@ jobs:
           CARGO_TERM_COLOR: always
         run: |
           source ${HOME}/.cargo/env
-          cargo build --profile production --verbose --features=runtime-benchmarks
+          RUSTC_BOOTSTRAP=1 cargo build --profile production --verbose --features=runtime-benchmarks
       - name: stop sccache server
         run: sccache --stop-server || true
       - name: upload
diff --git a/.github/workflows/generate_manta_weights_files.yml b/.github/workflows/generate_manta_weights_files.yml
index 066b322ba..96ce3b11f 100644
--- a/.github/workflows/generate_manta_weights_files.yml
+++ b/.github/workflows/generate_manta_weights_files.yml
@@ -49,10 +49,9 @@ jobs:
           curl -s https://sh.rustup.rs -sSf | sh -s -- -y
           source ${HOME}/.cargo/env
           rustup toolchain install stable
-          rustup toolchain install nightly
           rustup default stable
-          rustup target add wasm32-unknown-unknown --toolchain nightly
           rustup update
+          rustup target add wasm32-unknown-unknown
       - name: build
         env:
           RUST_BACKTRACE: full
@@ -62,7 +61,7 @@ jobs:
           CARGO_TERM_COLOR: always
         run: |
           source ${HOME}/.cargo/env
-          cargo build --profile production --verbose --features=runtime-benchmarks
+          RUSTC_BOOTSTRAP=1 cargo build --profile production --verbose --features=runtime-benchmarks
       - name: stop sccache server
         run: sccache --stop-server || true
       - name: upload
diff --git a/.github/workflows/metadata_diff.yml b/.github/workflows/metadata_diff.yml
index 2ea4b8721..747c37bba 100644
--- a/.github/workflows/metadata_diff.yml
+++ b/.github/workflows/metadata_diff.yml
@@ -75,10 +75,9 @@ jobs:
           curl -s https://sh.rustup.rs -sSf | sh -s -- -y
           source ${HOME}/.cargo/env
           rustup toolchain install stable
-          rustup toolchain install nightly
           rustup default stable
-          rustup target add wasm32-unknown-unknown --toolchain nightly
           rustup update
+          rustup target add wasm32-unknown-unknown
       - name: Build Binary
         env:
           RUST_BACKTRACE: full
@@ -87,7 +86,7 @@ jobs:
           SCCACHE_DIR: /home/runner/.cache/sccache
         run: |
           source ${HOME}/.cargo/env
-          cargo build --release
+          RUSTC_BOOTSTRAP=1 cargo build --release
           chmod +x target/release/manta
       - name: stop sccache server
         run: sccache --stop-server || true
diff --git a/.github/workflows/publish_draft_releases.yml b/.github/workflows/publish_draft_releases.yml
index d2be5af6d..adf549775 100644
--- a/.github/workflows/publish_draft_releases.yml
+++ b/.github/workflows/publish_draft_releases.yml
@@ -120,10 +120,9 @@ jobs:
           curl -s https://sh.rustup.rs -sSf | sh -s -- -y
           source ${HOME}/.cargo/env
           rustup toolchain install stable
-          rustup toolchain install nightly
           rustup default stable
-          rustup target add wasm32-unknown-unknown --toolchain nightly
           rustup update
+          rustup target add wasm32-unknown-unknown
       - name: build
         env:
           RUST_BACKTRACE: full
@@ -132,7 +131,7 @@ jobs:
           SCCACHE_DIR: /home/runner/.cache/sccache
         run: |
           source ${HOME}/.cargo/env
-          cargo build --profile production --verbose
+          RUSTC_BOOTSTRAP=1 cargo build --profile production --verbose
       - name: stop sccache server
         run: sccache --stop-server || true
       - name: upload
@@ -188,7 +187,7 @@ jobs:
       - if: ${{ needs.check-for-runtime-upgrade.outputs.do-versions-match == 'false' }}
         name: fetch and chmod polkadot
         run: |
-          curl -L -o $HOME/.local/bin/polkadot https://github.com/paritytech/polkadot/releases/download/v0.9.18/polkadot
+          curl -L -o $HOME/.local/bin/polkadot https://github.com/paritytech/polkadot/releases/download/v0.9.22/polkadot
           chmod +x $HOME/.local/bin/polkadot
           ls -ahl $HOME/.local/bin/
       - if: ${{ needs.check-for-runtime-upgrade.outputs.do-versions-match == 'false' }}
diff --git a/.github/workflows/check_build.yml b/.github/workflows/run_linters.yml
similarity index 95%
rename from .github/workflows/check_build.yml
rename to .github/workflows/run_linters.yml
index 0323280e2..8e7ea2a96 100644
--- a/.github/workflows/check_build.yml
+++ b/.github/workflows/run_linters.yml
@@ -1,4 +1,4 @@
-name: Check Build
+name: Run Linters
 on:
   pull_request:
     branches: [manta]
@@ -66,13 +66,13 @@ jobs:
       - name: start sccache server
         run: sccache --start-server
       - name: init
+      # NOTE: We use nightly Rust only to get nightly fmt & clippy
         run: |
           curl -s https://sh.rustup.rs -sSf | sh -s -- -y
           source ${HOME}/.cargo/env
           rustup toolchain install nightly
-          rustup target add wasm32-unknown-unknown --toolchain nightly
+          rustup +nightly target add wasm32-unknown-unknown
           rustup default nightly
-          rustup update
           cargo install taplo-cli
       - name: Run yamllint
         uses: actionshub/yamllint@main
@@ -87,7 +87,7 @@ jobs:
           cargo fmt --all -- --check
           $HOME/.cargo/bin/taplo fmt --check
           $HOME/.cargo/bin/taplo lint
-      - name: Check Build
+      - name: Cargo Check & Clippy
         env:
           RUST_BACKTRACE: full
           RUSTC_WRAPPER: sccache
diff --git a/.github/workflows/try-runtime-calamari-mainnet.yml b/.github/workflows/try-runtime-calamari-mainnet.yml
index 42b27dbac..ff98c84c2 100644
--- a/.github/workflows/try-runtime-calamari-mainnet.yml
+++ b/.github/workflows/try-runtime-calamari-mainnet.yml
@@ -75,10 +75,9 @@ jobs:
           curl -s https://sh.rustup.rs -sSf | sh -s -- -y
           source ${HOME}/.cargo/env
           rustup toolchain install stable
-          rustup toolchain install nightly
           rustup default stable
-          rustup target add wasm32-unknown-unknown --toolchain nightly
           rustup update
+          rustup target add wasm32-unknown-unknown
       - name: Build Binary
         env:
           RUST_BACKTRACE: full
@@ -87,7 +86,7 @@ jobs:
           SCCACHE_DIR: /home/runner/.cache/sccache
         run: |
           source ${HOME}/.cargo/env
-          cargo build --release --features=try-runtime
+          RUSTC_BOOTSTRAP=1 cargo build --release --features=try-runtime
           chmod a+x target/release/manta
       - name: move bin
         run: |
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 49004dc8d..9e4cd0f3b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -23,6 +23,7 @@
 - [\#657](https://github.com/Manta-Network/Manta/pull/657) retire manta-pc-launch with polkadot-launch.
 
 ### Bug fixes
+- [\#677](https://github.com/Manta-Network/Manta/pull/677) Fix CI failure by building the runtime with stable Rust
 
 ## v3.2.0
 ### Breaking changes