diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 552ea07148..03eeda6d6c 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,4 +1,8 @@
 # paritytech/wasmi
+#
+# To run benchmarks on a GitLab's "shell" runner following dependencies should be installed
+# cargo-wasi
+# wasmtime
 
 stages:
   - benchmarks
@@ -16,7 +20,7 @@ default:
   image:                           "paritytech/ci-linux:staging"
   interruptible:                   true
   tags:
-    - linux-docker-benches
+    - weights
 
 .kubernetes-env:                   &kubernetes-env
   image:                           "paritytech/tools:latest"
@@ -27,7 +31,7 @@ default:
 criterion-benchmark:
   stage:                           benchmarks
   rules:
-    - if: $CI_COMMIT_REF_NAME =~ /^[0-9]+$/                   # PRs
+    - if: $CI_COMMIT_REF_NAME =~ /^[0-9]+$/                  # PRs
   <<:                              *docker-env
   artifacts:
     name:                          "${CI_JOB_NAME}_${CI_COMMIT_REF_NAME}"
@@ -43,7 +47,7 @@ criterion-benchmark:
     - git submodule update --init --recursive
     - mkdir -p ./target/ci
     - pushd ./crates/wasmi/
-    - cargo bench --bench benches -- --noplot --save-baseline master | tee ../../target/ci/bench-master
+    - cargo +nightly bench --bench benches -- --noplot --save-baseline master | tee ../../target/ci/bench-master
     - popd
     - git submodule deinit --all -f
 
@@ -51,7 +55,7 @@ criterion-benchmark:
     - git checkout $CI_COMMIT_SHA
     - git submodule update --init --recursive
     - pushd ./crates/wasmi/
-    - cargo bench --bench benches -- --noplot --baseline master | tee ../../target/ci/bench-pr
+    - cargo +nightly bench --bench benches -- --noplot --baseline master | tee ../../target/ci/bench-pr
     - popd
 
     # Save benchmark report
@@ -69,10 +73,6 @@ wasmtime-benchmark:
     paths:
       - target/ci/
   script:
-    # Install dependencies
-    - cargo install cargo-wasi
-    - curl https://wasmtime.dev/install.sh -sSf | bash
-    - source ~/.profile
 
     # `wasmtime` Branch: `master`
     - git fetch
@@ -80,7 +80,7 @@ wasmtime-benchmark:
     - git pull
     - git submodule update --init --recursive
     - mkdir -p ./target/ci
-    - cargo wasi build --profile bench --bench benches --verbose
+    - cargo +nightly wasi build --profile bench --bench benches --verbose
     - cp `ls -t target/wasm32-wasi/release/deps/*wasi.wasm` target/ci/benches-master.wasm
     - pushd ./crates/wasmi/
     - wasmtime run --dir=. ../../target/ci/benches-master.wasm -- --bench --save-baseline master-wasm | tee ../../target/ci/wasmtime-master
@@ -91,7 +91,7 @@ wasmtime-benchmark:
     - git checkout $CI_COMMIT_SHA
     - git submodule update --init --recursive
     - mkdir -p ./target/ci
-    - cargo wasi build --profile bench --bench benches --verbose
+    - cargo +nightly wasi build --profile bench --bench benches --verbose
     - cp `ls -t target/wasm32-wasi/release/deps/*wasi.wasm` target/ci/benches-pr.wasm
     - pushd ./crates/wasmi/
     - wasmtime run --dir=. ../../target/ci/benches-pr.wasm -- --bench --baseline master-wasm | tee ../../target/ci/wasmtime-pr