diff --git a/.github/workflows/coverage.yaml b/.github/workflows/coverage.yaml
index 3126e805..381532ee 100644
--- a/.github/workflows/coverage.yaml
+++ b/.github/workflows/coverage.yaml
@@ -23,11 +23,10 @@ jobs:
           toolchain: stable
           override: true
 
-      - name: Run cargo-tarpaulin
-        uses: actions-rs/tarpaulin@v0.1
-        with:
-          version: '0.19.1'
-          args: '--exclude-files *_test.rs *tests* *experiments*'
+      - name: Generate code coverage
+        run: |
+          cargo install --features vendored-openssl cargo-tarpaulin
+          cargo tarpaulin --exclude-files *_test.rs *tests* *experiments* --out xml
 
       - name: Upload to codecov.io
         uses: codecov/codecov-action@v1.0.2
diff --git a/experiments/heuristic-research/Cargo.toml b/experiments/heuristic-research/Cargo.toml
index b80cdf8f..cbb125e8 100644
--- a/experiments/heuristic-research/Cargo.toml
+++ b/experiments/heuristic-research/Cargo.toml
@@ -23,7 +23,8 @@ serde.workspace = true
 serde_json.workspace = true
 lazy_static.workspace = true
 
-plotters = "0.3.7"
+# added features as it fails to compile without them on github CI
+plotters = { version = "0.3.7", features = ["ab_glyph", "fontconfig-dlopen"] }
 plotters-canvas = "0.3.0"
 itertools = "0.14.0"
 wasm-bindgen = "0.2.99"