diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 503ef3ec..65afce3c 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -19,8 +19,8 @@ jobs:
       - name: Set up JDK 17
         uses: actions/setup-java@v3
         with:
-          java-version: '17'
-          distribution: 'temurin'
+          java-version: 17
+          distribution: temurin
           cache: maven
 
       - name: mvn install
@@ -51,9 +51,3 @@ jobs:
             git commit -m "Autogenerated JaCoCo coverage badge" *.svg
             git push --set-upstream origin actions/badges
           fi
-
-      - name: Upload JaCoCo coverage report
-        uses: actions/upload-artifact@v3
-        with:
-          name: jacoco-report
-          path: spectrum/target/site/jacoco/
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 0c3b06d2..05531a96 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -26,8 +26,8 @@ jobs:
     - name: Set up JDK 17
       uses: actions/setup-java@v3
       with:
-        java-version: '17'
-        distribution: 'temurin'
+        java-version: 17
+        distribution: temurin
         cache: maven
 
     - name: Initialize CodeQL
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 1f1e0963..8861cdb9 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -13,7 +13,8 @@ jobs:
       name: github-pages
       url: ${{steps.deployment.outputs.page_url}}
     steps:
-      - uses: actions/checkout@v4
+      - name: Checkout repository
+        uses: actions/checkout@v4
 
       - name: Setup GitHub Pages
         uses: actions/configure-pages@v3
@@ -24,6 +25,16 @@ jobs:
           source: docs/
           destination: ./_site
 
+      - name: Set up JDK 17
+        uses: actions/setup-java@v3
+        with:
+          java-version: 17
+          distribution: temurin
+          cache: maven
+
+      - name: Spectrum unit tests and JaCoCo reports
+        run: ./mvnw -B test -DskipSign -Dmaven.plugin.validation=BRIEF -pl spectrum
+
       - name: Upload GitHub Pages Artifact
         uses: actions/upload-pages-artifact@v2
 
diff --git a/.github/workflows/stale-issues.yml b/.github/workflows/stale-issues.yml
index d5cd3cf1..0342e821 100644
--- a/.github/workflows/stale-issues.yml
+++ b/.github/workflows/stale-issues.yml
@@ -1,7 +1,7 @@
 name: Close inactive issues
 on:
   schedule:
-    - cron: "30 1 * * *"
+    - cron: 30 1 * * *
 
 jobs:
   close-issues:
@@ -14,9 +14,9 @@ jobs:
         with:
           days-before-issue-stale: 30
           days-before-issue-close: 14
-          stale-issue-label: "stale"
-          stale-issue-message: "This issue is stale because it has been open for 30 days with no activity."
-          close-issue-message: "This issue was closed because it has been inactive for 14 days since being marked as stale."
+          stale-issue-label: stale
+          stale-issue-message: This issue is stale because it has been open for 30 days with no activity.
+          close-issue-message: This issue was closed because it has been inactive for 14 days since being marked as stale.
           days-before-pr-stale: -1
           days-before-pr-close: -1
           repo-token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.gitignore b/.gitignore
index 61f3308c..3de87f38 100644
--- a/.gitignore
+++ b/.gitignore
@@ -40,3 +40,4 @@ docs/.sass-cache
 docs/.jekyll-cache
 docs/.jekyll-metadata
 docs/vendor
+docs/jacoco
diff --git a/README.md b/README.md
index 020bfd3d..2c3478f4 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,8 @@
 <div align="center">
 
 [![Build](https://github.com/giulong/spectrum/actions/workflows/build.yml/badge.svg?branch=develop)](https://github.com/giulong/spectrum/actions?query=branch%3Adevelop)
-![coverage](https://github.com/giulong/spectrum/blob/actions/badges/.github/badges/jacoco.svg)
-![branches coverage](https://github.com/giulong/spectrum/blob/actions/badges/.github/badges/branches.svg)
+![coverage](https://giulong.github.io/spectrum/jacoco/)
+![branches coverage](https://giulong.github.io/spectrum/jacoco/)
 [![badge-jdk](https://img.shields.io/badge/jdk-17-blue.svg)](https://www.oracle.com/java/technologies/javase-downloads.html)
 [![License](https://img.shields.io/badge/License-Apache_2.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)
 [![Maven Central](https://img.shields.io/maven-central/v/io.github.giulong/spectrum.svg)](https://search.maven.org/search?q=g:io.github.giulong%20a:spectrum)
diff --git a/pom.xml b/pom.xml
index 1664797e..85813d7c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -36,7 +36,8 @@
         <revision>1.5.0</revision>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-        <jacoco.outputDirectory>${project.reporting.outputDirectory}/jacoco</jacoco.outputDirectory>
+        <docs.folder>docs</docs.folder>
+        <jacoco.outputDirectory>${docs.folder}/jacoco</jacoco.outputDirectory>
         <resourcesFolder>src/main/resources</resourcesFolder>
         <launcherSessionListener>org.junit.platform.launcher.LauncherSessionListener</launcherSessionListener>
 
@@ -310,6 +311,16 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-clean-plugin</artifactId>
+                <configuration>
+                    <filesets>
+                        <fileset>
+                            <directory>${jacoco.outputDirectory}</directory>
+                            <includes>
+                                <include>**</include>
+                            </includes>
+                        </fileset>
+                    </filesets>
+                </configuration>
             </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
diff --git a/spectrum/pom.xml b/spectrum/pom.xml
index 90b14e89..7df3373e 100644
--- a/spectrum/pom.xml
+++ b/spectrum/pom.xml
@@ -238,7 +238,7 @@
                             <goal>report</goal>
                         </goals>
                         <configuration>
-                            <outputDirectory>${jacoco.outputDirectory}</outputDirectory>
+                            <outputDirectory>${project.parent.basedir}/${jacoco.outputDirectory}</outputDirectory>
                         </configuration>
                     </execution>
                 </executions>