diff --git a/modules/aws/sonar-upgrader/python_upgrader/upgrade/scripts/upgrade_v4_10.sh b/modules/aws/sonar-upgrader/python_upgrader/upgrade/scripts/upgrade_v4_10.sh
index cc703d3d..bc482f4b 100644
--- a/modules/aws/sonar-upgrader/python_upgrader/upgrade/scripts/upgrade_v4_10.sh
+++ b/modules/aws/sonar-upgrader/python_upgrader/upgrade/scripts/upgrade_v4_10.sh
@@ -43,6 +43,7 @@ TARBALL_FILE=$EXTRACTION_BASE_DIR/$TARBALL_FILE_NAME
 
 VERSION="${TARBALL_FILE#*-}"
 VERSION="${VERSION%.tar.gz}"
+VERSION="${VERSION%_*}"  # remove any date suffix
 echo "Version: $VERSION"
 
 EXTRACTION_DIR="${EXTRACTION_BASE_DIR}/jsonar/apps/${VERSION}"