diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index 7aca9b8..e950bc6 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -36,7 +36,7 @@ jobs:
           MAVEN_USER: ${{ secrets.MAVEN_USER }}
           MAVEN_PASS: ${{ secrets.MAVEN_PASS }}
           
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         if: ${{ inputs.release }}
         with:
           name: ${{ github.event.repository.name }}-release-jar
diff --git a/build.gradle.kts b/build.gradle.kts
index a1bc24e..e134b00 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -6,7 +6,7 @@ plugins {
 
 qupathExtension {
 	name = "qupath-extension-py4j"
-	version = "0.1.0-SNAPSHOT"
+	version = "0.1.0-rc1"
 	group = "io.github.qupath"
 	description = "Connect QuPath to Python using Py4J"
 	automaticModule = "qupath.extension.py4j"
diff --git a/src/main/java/qupath/ext/py4j/core/QuPathEntryPoint.java b/src/main/java/qupath/ext/py4j/core/QuPathEntryPoint.java
index 64b7676..36c5907 100644
--- a/src/main/java/qupath/ext/py4j/core/QuPathEntryPoint.java
+++ b/src/main/java/qupath/ext/py4j/core/QuPathEntryPoint.java
@@ -299,7 +299,7 @@ public static List<String> getObjectIds(Collection<? extends PathObject> pathObj
 	 */
 	public static List<String> getMeasurementNames(Collection<? extends PathObject> pathObjects) {
 		return pathObjects.stream()
-				.flatMap(p -> p.getMeasurementList().getMeasurementNames().stream())
+				.flatMap(p -> p.getMeasurementList().getNames().stream())
 				.distinct()
 				.toList();
 	}