diff --git a/dockerfiles/ci-linux/Dockerfile b/dockerfiles/ci-linux/Dockerfile
index 79178543..285d2249 100644
--- a/dockerfiles/ci-linux/Dockerfile
+++ b/dockerfiles/ci-linux/Dockerfile
@@ -10,43 +10,43 @@ LABEL summary="Image for Substrate-based projects." \
 	maintainer="devops-team@parity.io" \
 	version="1.0" \
 	description="Inherits from base-ci-linux; \
-wasm-gc, wasm-bindgen-cli, wasm-pack, cargo-audit, cargo-web, cargo-deny" \
+	wasm-gc, wasm-bindgen-cli, wasm-pack, cargo-audit, cargo-web, cargo-deny" \
 	io.parity.image.vendor="Parity Technologies" \
 	io.parity.image.source="https://github.com/paritytech/scripts/blob/${VCS_REF}/\
-dockerfiles/ci-linux/Dockerfile" \
+	dockerfiles/ci-linux/Dockerfile" \
 	io.parity.image.documentation="https://github.com/paritytech/scripts/blob/${VCS_REF}/\
-dockerfiles/ci-linux/README.md" \
+	dockerfiles/ci-linux/README.md" \
 	io.parity.image.revision="${VCS_REF}" \
 	io.parity.image.created="${BUILD_DATE}"
 
 # install tools and dependencies
 RUN set -eux && \
-# install `rust-src` component for ui test
+	# install `rust-src` component for ui test
 	rustup component add rust-src rustfmt clippy && \
-# install specific Rust nightly, default is stable, use minimum components
-	rustup toolchain install nightly-2021-11-08 --profile minimal --component rustfmt clippy && \
-# "alias" pinned nightly-2021-11-08 toolchain as nightly
-	ln -s /usr/local/rustup/toolchains/nightly-2021-11-08-x86_64-unknown-linux-gnu /usr/local/rustup/toolchains/nightly-x86_64-unknown-linux-gnu && \
-# install wasm toolchain
+	# install specific Rust nightly, default is stable, use minimum components
+	rustup toolchain install nightly-2022-04-08 --profile minimal --component rustfmt clippy && \
+	# "alias" pinned nightly-2022-04-08 toolchain as nightly
+	ln -s /usr/local/rustup/toolchains/nightly-2022-04-08-x86_64-unknown-linux-gnu /usr/local/rustup/toolchains/nightly-x86_64-unknown-linux-gnu && \
+	# install wasm toolchain
 	rustup target add wasm32-unknown-unknown && \
 	rustup target add wasm32-unknown-unknown --toolchain nightly && \
-# install cargo tools
+	# install cargo tools
 	cargo install cargo-web wasm-pack cargo-deny cargo-spellcheck && \
 	cargo install --version 0.4.2 diener && \
-# wasm-bindgen-cli version should match the one pinned in substrate
-# https://github.com/paritytech/substrate/blob/master/bin/node/browser-testing/Cargo.toml#L15
+	# wasm-bindgen-cli version should match the one pinned in substrate
+	# https://github.com/paritytech/substrate/blob/master/bin/node/browser-testing/Cargo.toml#L15
 	cargo install --version 0.2.73 wasm-bindgen-cli && \
-# install wasm-gc. It's useful for stripping slimming down wasm binaries (polkadot)
+	# install wasm-gc. It's useful for stripping slimming down wasm binaries (polkadot)
 	cargo +nightly install wasm-gc && \
-# versions
+	# versions
 	rustup show && \
 	cargo --version && \
-# apt clean up
+	# apt clean up
 	apt-get autoremove -y && \
 	apt-get clean && \
 	rm -rf /var/lib/apt/lists/* && \
-# cargo clean up
-# removes compilation artifacts cargo install creates (>250M)
+	# cargo clean up
+	# removes compilation artifacts cargo install creates (>250M)
 	rm -rf "${CARGO_HOME}/registry" "${CARGO_HOME}/git" /root/.cache/sccache
 
 # TODO: switch to non-root here when substrate will work with latest rust nightlies again