diff --git a/daemon/src/main/java/org/mvndaemon/mvnd/builder/ReactorBuildStats.java b/daemon/src/main/java/org/mvndaemon/mvnd/builder/ReactorBuildStats.java
index 53bab4f17..4c8e9d08d 100644
--- a/daemon/src/main/java/org/mvndaemon/mvnd/builder/ReactorBuildStats.java
+++ b/daemon/src/main/java/org/mvndaemon/mvnd/builder/ReactorBuildStats.java
@@ -56,14 +56,14 @@ private ReactorBuildStats(Map<String, AtomicLong> serviceTimes,
         this.bottleneckTimes = ImmutableMap.copyOf(bottleneckTimes);
     }
 
-    private static String projectGA(MavenProject project) {
-        return project.getGroupId() + ":" + project.getArtifactId();
+    private static String projectGAV(MavenProject project) {
+        return project.getGroupId() + ":" + project.getArtifactId() + ":" + project.getVersion();
     }
 
     public static ReactorBuildStats create(Collection<MavenProject> projects) {
         ImmutableMap.Builder<String, AtomicLong> serviceTimes = ImmutableMap.builder();
         ImmutableMap.Builder<String, AtomicLong> bottleneckTimes = ImmutableMap.builder();
-        projects.stream().map(ReactorBuildStats::projectGA).forEach(key -> {
+        projects.stream().map(ReactorBuildStats::projectGAV).forEach(key -> {
             serviceTimes.put(key, new AtomicLong());
             bottleneckTimes.put(key, new AtomicLong());
         });
@@ -79,9 +79,9 @@ public void recordStop() {
     }
 
     public void recordServiceTime(MavenProject project, long durationNanos) {
-        AtomicLong serviceTime = serviceTimes.get(projectGA(project));
+        AtomicLong serviceTime = serviceTimes.get(projectGAV(project));
         if (serviceTime == null) {
-            throw new IllegalStateException("Unknown project " + projectGA(project) + ", found " + serviceTimes.keySet());
+            throw new IllegalStateException("Unknown project " + projectGAV(project) + ", found " + serviceTimes.keySet());
         }
         serviceTime.addAndGet(durationNanos);
     }
@@ -90,7 +90,7 @@ public void recordBottlenecks(Set<MavenProject> projects, int degreeOfConcurrenc
             long durationNanos) {
         // only projects that result in single-threaded builds
         if (projects.size() == 1) {
-            projects.forEach(p -> bottleneckTimes.get(projectGA(p)).addAndGet(durationNanos));
+            projects.forEach(p -> bottleneckTimes.get(projectGAV(p)).addAndGet(durationNanos));
         }
     }
 
@@ -108,7 +108,7 @@ public long walltimeTime(TimeUnit unit) {
     }
 
     public String renderCriticalPath(DependencyGraph<MavenProject> graph) {
-        return renderCriticalPath(graph, ReactorBuildStats::projectGA);
+        return renderCriticalPath(graph, ReactorBuildStats::projectGAV);
     }
 
     public <K> String renderCriticalPath(DependencyGraph<K> graph, Function<K, String> toKey) {
diff --git a/integration-tests/src/test/java/org/mvndaemon/mvnd/it/DupGATest.java b/integration-tests/src/test/java/org/mvndaemon/mvnd/it/DupGATest.java
new file mode 100644
index 000000000..48f629eff
--- /dev/null
+++ b/integration-tests/src/test/java/org/mvndaemon/mvnd/it/DupGATest.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2021 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.mvndaemon.mvnd.it;
+
+import java.io.IOException;
+import javax.inject.Inject;
+import org.junit.jupiter.api.Test;
+import org.mvndaemon.mvnd.assertj.TestClientOutput;
+import org.mvndaemon.mvnd.client.Client;
+import org.mvndaemon.mvnd.client.DaemonParameters;
+import org.mvndaemon.mvnd.junit.MvndTest;
+
+@MvndTest(projectDir = "src/test/projects/dup-ga")
+public class DupGATest {
+
+    @Inject
+    Client client;
+
+    @Inject
+    DaemonParameters parameters;
+
+    @Test
+    void cleanInstall() throws IOException, InterruptedException {
+        final TestClientOutput output = new TestClientOutput();
+        client.execute(output, "clean", "install", "-e").assertSuccess();
+    }
+}
diff --git a/integration-tests/src/test/projects/dup-ga/.mvn/maven.config b/integration-tests/src/test/projects/dup-ga/.mvn/maven.config
new file mode 100644
index 000000000..4230c2417
--- /dev/null
+++ b/integration-tests/src/test/projects/dup-ga/.mvn/maven.config
@@ -0,0 +1,3 @@
+-Dmaven.wagon.httpconnectionManager.ttlSeconds=120
+-Dmaven.wagon.http.retryHandler.requestSentEnabled=true
+-Dmaven.wagon.http.retryHandler.count=10
diff --git a/integration-tests/src/test/projects/dup-ga/hi1/pom.xml b/integration-tests/src/test/projects/dup-ga/hi1/pom.xml
new file mode 100644
index 000000000..5f95e99fa
--- /dev/null
+++ b/integration-tests/src/test/projects/dup-ga/hi1/pom.xml
@@ -0,0 +1,31 @@
+<!--
+
+    Copyright 2021 the original author or authors.
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+-->
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.mvndaemon.mvnd.test.dup-ga</groupId>
+        <artifactId>dup-ga</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+
+    <artifactId>dup-ga-hi</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+</project>
\ No newline at end of file
diff --git a/integration-tests/src/test/projects/dup-ga/hi2/pom.xml b/integration-tests/src/test/projects/dup-ga/hi2/pom.xml
new file mode 100644
index 000000000..98f89748c
--- /dev/null
+++ b/integration-tests/src/test/projects/dup-ga/hi2/pom.xml
@@ -0,0 +1,31 @@
+<!--
+
+    Copyright 2021 the original author or authors.
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+-->
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.mvndaemon.mvnd.test.dup-ga</groupId>
+        <artifactId>dup-ga</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+
+    <artifactId>dup-ga-hi</artifactId>
+    <version>2.0-SNAPSHOT</version>
+
+</project>
\ No newline at end of file
diff --git a/integration-tests/src/test/projects/dup-ga/pom.xml b/integration-tests/src/test/projects/dup-ga/pom.xml
new file mode 100644
index 000000000..f2583c3fa
--- /dev/null
+++ b/integration-tests/src/test/projects/dup-ga/pom.xml
@@ -0,0 +1,76 @@
+<!--
+
+    Copyright 2021 the original author or authors.
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+-->
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>org.mvndaemon.mvnd.test.dup-ga</groupId>
+    <artifactId>dup-ga</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <packaging>pom</packaging>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <maven.compiler.target>1.8</maven.compiler.target>
+        <maven.compiler.source>1.8</maven.compiler.source>
+
+        <maven-clean-plugin.version>2.5</maven-clean-plugin.version>
+        <maven-compiler-plugin.version>3.8.0</maven-compiler-plugin.version>
+        <maven-install-plugin.version>2.4</maven-install-plugin.version>
+        <maven-resources-plugin.version>2.6</maven-resources-plugin.version>
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+    </properties>
+
+    <modules>
+        <module>hi1</module>
+        <module>hi2</module>
+    </modules>
+
+    <build>
+        <pluginManagement>
+            <plugins>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-clean-plugin</artifactId>
+                    <version>${maven-clean-plugin.version}</version>
+                </plugin>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-compiler-plugin</artifactId>
+                    <version>${maven-compiler-plugin.version}</version>
+                </plugin>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-install-plugin</artifactId>
+                    <version>${maven-install-plugin.version}</version>
+                </plugin>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-resources-plugin</artifactId>
+                    <version>${maven-resources-plugin.version}</version>
+                </plugin>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-surefire-plugin</artifactId>
+                    <version>${maven-surefire-plugin.version}</version>
+                </plugin>
+            </plugins>
+        </pluginManagement>
+    </build>
+
+</project>
\ No newline at end of file