diff --git a/README.md b/README.md
index 25133309..cf35ed44 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ Ezunpaywall is an API and database that queries the Unpaywall database containin
 **Table of content**
 - [Structure](#Structure)
 - [Installation](#Installation)
-    - [Developement](#Development)
+    - [Development](#Development)
         - [Prerequisites](#Prerequisites)
         - [Start](#Start)
         - [Tests](#Tests)
diff --git a/package.json b/package.json
index e5c84c2a..5a817339 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
    "name": "ezunpaywall",
-   "version": "1.3.4",
+   "version": "1.3.5",
    "description": "",
    "author": "felixleo22",
    "license": "CeCILL",
diff --git a/src/apikey/package.json b/src/apikey/package.json
index db6557b4..a069f0e1 100644
--- a/src/apikey/package.json
+++ b/src/apikey/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ezunpaywall-apikey",
-  "version": "1.3.4",
+  "version": "1.3.5",
   "description": "",
   "main": "app.js",
   "author": "felixleo22",
diff --git a/src/enrich/lib/csv.js b/src/enrich/lib/csv.js
index 8fe788f8..7255adc8 100644
--- a/src/enrich/lib/csv.js
+++ b/src/enrich/lib/csv.js
@@ -101,7 +101,7 @@ function enrichArray(data, response) {
 
   response.forEach((el) => {
     if (el.doi) {
-      results.set(el.doi, el);
+      results.set(el.doi.toLowerCase(), el);
     }
   });
 
@@ -109,7 +109,7 @@ function enrichArray(data, response) {
     if (!el.doi) {
       return;
     }
-    let res = results.get(el.doi);
+    let res = results.get(el.doi.toLowerCase());
     if (!res) {
       return;
     }
diff --git a/src/enrich/lib/json.js b/src/enrich/lib/json.js
index e1cc757d..0bb6e9cf 100644
--- a/src/enrich/lib/json.js
+++ b/src/enrich/lib/json.js
@@ -79,7 +79,7 @@ function enrichArray(data, response) {
 
   response.forEach((el) => {
     if (el.doi) {
-      results.set(el.doi, el);
+      results.set(el.doi.toLowerCase(), el);
     }
   });
 
@@ -87,7 +87,7 @@ function enrichArray(data, response) {
     if (!el.doi) {
       return;
     }
-    const res = results.get(el.doi);
+    const res = results.get(el.doi.toLowerCase());
     if (!res) {
       return;
     }
diff --git a/src/enrich/package.json b/src/enrich/package.json
index 252217ea..06d4fbb5 100644
--- a/src/enrich/package.json
+++ b/src/enrich/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ezunpaywall-enrich",
-  "version": "1.3.4",
+  "version": "1.3.5",
   "description": "",
   "main": "app.js",
   "author": "felixleo22",
diff --git a/src/fakeUnpaywall/package.json b/src/fakeUnpaywall/package.json
index dedcdaf7..ae63d9b1 100644
--- a/src/fakeUnpaywall/package.json
+++ b/src/fakeUnpaywall/package.json
@@ -1,6 +1,6 @@
 {
   "name": "fakeunpaywall",
-  "version": "1.3.4",
+  "version": "1.3.5",
   "description": "",
   "main": "app.js",
   "author": "felixleo22",
diff --git a/src/frontend/components/enrich/EnrichCard.vue b/src/frontend/components/enrich/EnrichCard.vue
index 8ef9f615..81888583 100644
--- a/src/frontend/components/enrich/EnrichCard.vue
+++ b/src/frontend/components/enrich/EnrichCard.vue
@@ -63,6 +63,7 @@
             <v-btn
               prepend-icon="mdi-chevron-left"
               variant="tonal"
+              :disabled="isProcessing"
               @click="setStep(2)"
             >
               {{ t("enrich.settings") }}
diff --git a/src/graphql/package.json b/src/graphql/package.json
index fe17718f..31209d70 100644
--- a/src/graphql/package.json
+++ b/src/graphql/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ezunpaywall-graphql",
-  "version": "1.3.4",
+  "version": "1.3.5",
   "description": "",
   "main": "app.js",
   "author": "felixleo22",
diff --git a/src/health/package.json b/src/health/package.json
index cc839833..128880fc 100644
--- a/src/health/package.json
+++ b/src/health/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ezunpaywall-health",
-  "version": "1.3.4",
+  "version": "1.3.5",
   "description": "",
   "main": "app.js",
   "author": "felixleo22",
diff --git a/src/mail/package.json b/src/mail/package.json
index 63f40efd..3c9a6b4f 100644
--- a/src/mail/package.json
+++ b/src/mail/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mail",
-  "version": "1.3.4",
+  "version": "1.3.5",
   "description": "",
   "main": "app.js",
   "scripts": {
diff --git a/src/update/package.json b/src/update/package.json
index ad8badcd..e43134ec 100644
--- a/src/update/package.json
+++ b/src/update/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ezunpaywall-update",
-  "version": "1.3.4",
+  "version": "1.3.5",
   "description": "",
   "main": "app.js",
   "author": "felixleo22",