diff --git a/package-lock.json b/package-lock.json
index 31d9d54..55242aa 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@digitallinguistics/concordance",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 506331c..3eed6d4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@digitallinguistics/concordance",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "description": "A Node.js library for concordancing a corpus formatted according to the Data Format for Digital Linguistis (DaFoDiL)",
   "keywords": [
     "corpus linguistics",