diff --git a/core/Changes b/core/Changes
index 3861484..7d3e66f 100644
--- a/core/Changes
+++ b/core/Changes
@@ -1,3 +1,7 @@
+# version 0.63.1
+2021-03-25
+ - Updated Koral version for InfoController.
+
 # version 0.63
 14/01/2021
    - Updated Flyway (margaretha)
diff --git a/core/src/main/java/de/ids_mannheim/korap/utils/ServiceInfo.java b/core/src/main/java/de/ids_mannheim/korap/utils/ServiceInfo.java
index f2691da..fa83ebc 100644
--- a/core/src/main/java/de/ids_mannheim/korap/utils/ServiceInfo.java
+++ b/core/src/main/java/de/ids_mannheim/korap/utils/ServiceInfo.java
@@ -1,6 +1,7 @@
 package de.ids_mannheim.korap.utils;
 
 import de.ids_mannheim.korap.config.ConfigLoader;
+import de.ids_mannheim.korap.query.serialize.QuerySerializer;
 import lombok.Getter;
 
 import java.io.IOException;
@@ -44,6 +45,7 @@
     private void load () {
         Properties props = new Properties();
         try {
+            
             InputStream stream = getStream();
             props.load(stream);
             stream.close();
@@ -55,7 +57,9 @@
             this.cache_store = (String) props.get("kustvakt.cache_store");
             
             this.krillVersion=(String) props.get("krill.version");
-            this.koralVersion=(String) props.get("koral.version");
+            
+            QuerySerializer s = new QuerySerializer();
+            this.koralVersion = s.getVersion() ;
         }
         catch (IOException e) {
             this.version = UNKNOWN;
diff --git a/full/src/main/java/de/ids_mannheim/korap/oauth2/dto/OAuth2RefreshTokenDto.java b/full/src/main/java/de/ids_mannheim/korap/oauth2/dto/OAuth2TokenDto.java
similarity index 97%
rename from full/src/main/java/de/ids_mannheim/korap/oauth2/dto/OAuth2RefreshTokenDto.java
rename to full/src/main/java/de/ids_mannheim/korap/oauth2/dto/OAuth2TokenDto.java
index 8fac3ca..ef2cbfc 100644
--- a/full/src/main/java/de/ids_mannheim/korap/oauth2/dto/OAuth2RefreshTokenDto.java
+++ b/full/src/main/java/de/ids_mannheim/korap/oauth2/dto/OAuth2TokenDto.java
@@ -8,7 +8,7 @@
  * @author margaretha
  *
  */
-public class OAuth2RefreshTokenDto {
+public class OAuth2TokenDto {
 
     private String token;
     private String createdDate;
diff --git a/full/src/main/java/de/ids_mannheim/korap/oauth2/oltu/service/OltuTokenService.java b/full/src/main/java/de/ids_mannheim/korap/oauth2/oltu/service/OltuTokenService.java
index bbf7f04..abab7ce 100644
--- a/full/src/main/java/de/ids_mannheim/korap/oauth2/oltu/service/OltuTokenService.java
+++ b/full/src/main/java/de/ids_mannheim/korap/oauth2/oltu/service/OltuTokenService.java
@@ -28,7 +28,7 @@
 import de.ids_mannheim.korap.oauth2.constant.OAuth2Error;
 import de.ids_mannheim.korap.oauth2.dao.AccessTokenDao;
 import de.ids_mannheim.korap.oauth2.dao.RefreshTokenDao;
-import de.ids_mannheim.korap.oauth2.dto.OAuth2RefreshTokenDto;
+import de.ids_mannheim.korap.oauth2.dto.OAuth2TokenDto;
 import de.ids_mannheim.korap.oauth2.entity.AccessScope;
 import de.ids_mannheim.korap.oauth2.entity.AccessToken;
 import de.ids_mannheim.korap.oauth2.entity.Authorization;
@@ -512,7 +512,7 @@
         }
     }
     
-    public List<OAuth2RefreshTokenDto> listUserRefreshToken (String username, String clientId,
+    public List<OAuth2TokenDto> listUserRefreshToken (String username, String clientId,
             String clientSecret) throws KustvaktException {
         
         OAuth2Client client = clientService.authenticateClient(clientId, clientSecret);
@@ -523,13 +523,13 @@
         }
 
         List<RefreshToken> tokens = refreshDao.retrieveRefreshTokenByUser(username);
-        List<OAuth2RefreshTokenDto> dtoList = new ArrayList<>(tokens.size());
+        List<OAuth2TokenDto> dtoList = new ArrayList<>(tokens.size());
         for (RefreshToken t : tokens){
             OAuth2Client tokenClient = t.getClient();
             if (tokenClient.getId().equals(client.getId())){
                 continue;
             }
-            OAuth2RefreshTokenDto dto = new OAuth2RefreshTokenDto();
+            OAuth2TokenDto dto = new OAuth2TokenDto();
             dto.setClientId(tokenClient.getId());
             dto.setClientName(tokenClient.getName());
             dto.setClientUrl(tokenClient.getUrl());
diff --git a/full/src/main/java/de/ids_mannheim/korap/web/controller/OAuth2Controller.java b/full/src/main/java/de/ids_mannheim/korap/web/controller/OAuth2Controller.java
index 68f991c..17fb0a4 100644
--- a/full/src/main/java/de/ids_mannheim/korap/web/controller/OAuth2Controller.java
+++ b/full/src/main/java/de/ids_mannheim/korap/web/controller/OAuth2Controller.java
@@ -30,7 +30,7 @@
 
 import de.ids_mannheim.korap.constant.OAuth2Scope;
 import de.ids_mannheim.korap.exceptions.KustvaktException;
-import de.ids_mannheim.korap.oauth2.dto.OAuth2RefreshTokenDto;
+import de.ids_mannheim.korap.oauth2.dto.OAuth2TokenDto;
 import de.ids_mannheim.korap.oauth2.oltu.OAuth2AuthorizationRequest;
 import de.ids_mannheim.korap.oauth2.oltu.OAuth2RevokeAllTokenSuperRequest;
 import de.ids_mannheim.korap.oauth2.oltu.OAuth2RevokeTokenRequest;
@@ -341,7 +341,7 @@
     @ResourceFilters({ AuthenticationFilter.class, BlockingFilter.class })
     @Consumes(MediaType.APPLICATION_FORM_URLENCODED)
     @Produces(MediaType.APPLICATION_JSON + ";charset=utf-8")
-    public List<OAuth2RefreshTokenDto> listUserRefreshToken (
+    public List<OAuth2TokenDto> listUserRefreshToken (
             @Context SecurityContext context,
             @FormParam("client_id") String clientId,
             @FormParam("client_secret") String clientSecret) {
diff --git a/full/src/test/java/de/ids_mannheim/korap/web/controller/InfoControllerTest.java b/full/src/test/java/de/ids_mannheim/korap/web/controller/InfoControllerTest.java
index e9fdd12..68b7f3b 100644
--- a/full/src/test/java/de/ids_mannheim/korap/web/controller/InfoControllerTest.java
+++ b/full/src/test/java/de/ids_mannheim/korap/web/controller/InfoControllerTest.java
@@ -12,6 +12,7 @@
 import de.ids_mannheim.korap.config.KustvaktConfiguration;
 import de.ids_mannheim.korap.config.SpringJerseyTest;
 import de.ids_mannheim.korap.exceptions.KustvaktException;
+import de.ids_mannheim.korap.query.serialize.QuerySerializer;
 import de.ids_mannheim.korap.utils.JsonUtils;
 import de.ids_mannheim.korap.utils.ServiceInfo;
 import de.ids_mannheim.korap.web.SearchKrill;
@@ -41,7 +42,7 @@
                 node.at("/kustvakt_version").asText());
         assertEquals(krill.getIndex().getVersion(),
                 node.at("/krill_version").asText());
-        assertEquals(ServiceInfo.getInfo().getKoralVersion(),
-                node.at("/koral_version").asText());
+        QuerySerializer s = new QuerySerializer();
+        assertEquals(s.getVersion(), node.at("/koral_version").asText());
     }
 }