diff --git a/dhp-workflows/dhp-doiboost/src/test/resources/eu/dnetlib/doiboost/crossref/article.json b/dhp-workflows/dhp-doiboost/src/test/resources/eu/dnetlib/doiboost/crossref/article.json
index 69424d0ad7..5bdf9b3f30 100644
--- a/dhp-workflows/dhp-doiboost/src/test/resources/eu/dnetlib/doiboost/crossref/article.json
+++ b/dhp-workflows/dhp-doiboost/src/test/resources/eu/dnetlib/doiboost/crossref/article.json
@@ -1,5 +1,5 @@
 {
-  "DOI": "10.26850/1678-4618eqj.v35.1.2010.p41-46",
+  "DOI": " 10.26850/1678-4618eqj.v35.1.2010.p41-46",
   "issued": {
     "date-parts": [
       [
diff --git a/dhp-workflows/dhp-doiboost/src/test/resources/eu/dnetlib/doiboost/crossref/article_funder_template.json b/dhp-workflows/dhp-doiboost/src/test/resources/eu/dnetlib/doiboost/crossref/article_funder_template.json
index 1a49109ecd..5ab0544d11 100644
--- a/dhp-workflows/dhp-doiboost/src/test/resources/eu/dnetlib/doiboost/crossref/article_funder_template.json
+++ b/dhp-workflows/dhp-doiboost/src/test/resources/eu/dnetlib/doiboost/crossref/article_funder_template.json
@@ -1,5 +1,5 @@
 {
-  "DOI": "10.26850/1678-4618eqj.v35.1.2010.p41-46",
+  "DOI": "10.26850/1678-4618EQJ.v35.1.2010.p41-46",
   "issued": {
     "date-parts": [
       [