diff --git a/.github/workflows/create-release.yml b/.github/workflows/create-release.yml
index d6b083aa..ed6d4059 100644
--- a/.github/workflows/create-release.yml
+++ b/.github/workflows/create-release.yml
@@ -8,6 +8,9 @@ on:
       - 'src/**'
       - 'pom.xml'
 
+env:
+  JAVA_VERSION: '17'
+
 jobs:
   check-version:
     runs-on: ubuntu-latest
@@ -93,7 +96,7 @@ jobs:
       - name: Set up Maven Central Repository
         uses: actions/setup-java@v4
         with:
-          java-version: 11
+          java-version: ${{ env.JAVA_VERSION }}
           distribution: adopt
           server-id: ossrh
           server-username: MAVEN_USERNAME
diff --git a/.github/workflows/create-snapshot.yml b/.github/workflows/create-snapshot.yml
index aeefd745..8412953e 100644
--- a/.github/workflows/create-snapshot.yml
+++ b/.github/workflows/create-snapshot.yml
@@ -4,6 +4,9 @@ on:
   pull_request:
     types: [opened, edited, synchronize, reopened, labeled]
 
+env:
+  JAVA_VERSION: '17'
+
 jobs:
   # begin the snapshot verification before deployment
   check-version:
@@ -47,11 +50,11 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Set up JDK 11
+      - name: Set up JDK
         uses: actions/setup-java@v4
         with:
           distribution: "temurin"
-          java-version: "11"
+          java-version: ${{ env.JAVA_VERSION }}
 
       - name: Tests
         run: mvn test --no-transfer-progress
@@ -79,7 +82,7 @@ jobs:
       - name: Set up Maven Central Repository
         uses: actions/setup-java@v4
         with:
-          java-version: 11
+          java-version: ${{ env.JAVA_VERSION }}
           distribution: adopt
           server-id: ossrh
           server-username: MAVEN_USERNAME
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 81846b72..9eb80415 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -4,6 +4,9 @@ on:
   pull_request:
     types: [opened, edited, synchronize, reopened]
 
+env:
+  JAVA_VERSION: '17'
+
 jobs:
   test:
     if: ${{ ! contains(github.event.pull_request.labels.*.name, 'deploy-snapshot') }}
@@ -11,11 +14,11 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Set up JDK 11
+      - name: Set up JDK
         uses: actions/setup-java@v4
         with:
           distribution: "temurin"
-          java-version: "11"
+          java-version: ${{ env.JAVA_VERSION }}
 
       - name: Tests
         run: mvn test --no-transfer-progress
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
index dbfff366..1230ab59 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
 
 	<groupId>fr.insee.lunatic</groupId>
 	<artifactId>lunatic-model</artifactId>
-	<version>2.6.4</version>
+	<version>2.7.0</version>
 	<packaging>jar</packaging>
 
 	<name>Lunatic Model</name>
@@ -20,7 +20,7 @@
 		<!-- Build properties -->
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-		<maven.compiler.release>11</maven.compiler.release>
+		<maven.compiler.release>17</maven.compiler.release>
 		<!-- Version properties -->
 		<saxon.version>12.4</saxon.version>
 	</properties>
@@ -99,7 +99,7 @@
 
 		<dependency>
 			<groupId>org.xmlunit</groupId>
-			<artifactId>xmlunit-matchers</artifactId>
+			<artifactId>xmlunit-assertj3</artifactId>
 			<version>2.10.0</version>
 			<scope>test</scope>
 		</dependency>
diff --git a/src/test/java/fr/insee/lunatic/conversion/data/JsonToXmlDataTest.java b/src/test/java/fr/insee/lunatic/conversion/data/JsonToXmlDataTest.java
new file mode 100644
index 00000000..abf01ab6
--- /dev/null
+++ b/src/test/java/fr/insee/lunatic/conversion/data/JsonToXmlDataTest.java
@@ -0,0 +1,58 @@
+package fr.insee.lunatic.conversion.data;
+
+import org.junit.jupiter.api.Test;
+import org.xmlunit.assertj3.XmlAssert;
+
+class JsonToXmlDataTest {
+
+    /**
+     * Lunatic bug: in some cases pairwise data can be inconsistent.
+     * Yet the data conversion shouldn't fail so as not to break the data extraction of client collection tools
+     * that uses the json to xml conversion.
+     */
+    @Test
+    void convertInconsistentPairwiseData() throws Exception {
+        // Given
+        String jsonInconsistentData = """
+                {
+                  "COLLECTED": {
+                    "LIENS_MISSING": {
+                      "COLLECTED": [
+                        null,
+                        [null, null]
+                      ]
+                    }
+                  },
+                  "CALCULATED": {},
+                  "EXTERNAL": {
+                    "FOO_EXTERNAL": "some value"
+                  }
+                }""";
+        // When
+        JSONLunaticDataToXML converter = new JSONLunaticDataToXML();
+        String result = converter.transform(jsonInconsistentData);
+        // Then
+        String expected = """
+                <?xml version="1.0" encoding="UTF-8"?>
+                <Data>
+                  <COLLECTED>
+                    <LIENS_MISSING>
+                      <COLLECTED>
+                        <COLLECTED type="null"/>
+                        <COLLECTED>
+                          <COLLECTED type="null"/>
+                          <COLLECTED type="null"/>
+                        </COLLECTED>
+                      </COLLECTED>
+                    </LIENS_MISSING>
+                  </COLLECTED>
+                  <CALCULATED/>
+                  <EXTERNAL>
+                    <FOO_EXTERNAL type="string">some value</FOO_EXTERNAL>
+                  </EXTERNAL>
+                </Data>
+                """;
+        XmlAssert.assertThat(expected).and(result).ignoreWhitespace().areIdentical();
+    }
+
+}