diff --git a/server/pom.xml b/server/pom.xml
index cbc267a..9e5c7eb 100644
--- a/server/pom.xml
+++ b/server/pom.xml
@@ -21,7 +21,7 @@
 		<jersey.version>2.36</jersey.version>
 		<gson.version>2.6.2</gson.version>
 		<commons-configuration.version>1.10</commons-configuration.version>
-		<ontapi.version>1.3.4</ontapi.version>
+		<ontapi.version>1.3.8</ontapi.version>
 		<jbcrypt.version>0.3m</jbcrypt.version>
 		<java.version>1.8</java.version>
 		<httpclient.version>4.5.2</httpclient.version>
diff --git a/server/src/main/java/org/diskproject/server/api/impl/DiskResource.java b/server/src/main/java/org/diskproject/server/api/impl/DiskResource.java
index 411fda2..97f773b 100644
--- a/server/src/main/java/org/diskproject/server/api/impl/DiskResource.java
+++ b/server/src/main/java/org/diskproject/server/api/impl/DiskResource.java
@@ -508,34 +508,34 @@ public Response getOutputData(@JsonProperty("request") ExternalDataRequest r) {
     return rBuild.build();
   }
 
-  //@GET
-  //@Path("ontology.nq")
-  //@Override
-  //public Response getOntologyAll() {
-  //  try {
-  //    FileAndMeta all = this.repo.getOntologyAll();
-  //    ResponseBuilder rBuild = Response.ok(all.data, all.contentType);
-  //    return rBuild.build();
-  //  } catch (Exception e) {
-  //    try {
-  //      // Create Json error response
-  //      Gson gson = new Gson();
-  //      ErrorMessage error = new ErrorMessage(e.getMessage());
-  //      String jsonData = gson.toJson(error);
-
-  //      // Prepare the response
-  //      response.setContentType("application/json");
-  //      response.setCharacterEncoding("utf-8");
-  //      response.setStatus(500);
-
-  //      // Send the response
-  //      response.getWriter().print(jsonData.toString());
-  //      response.getWriter().flush();
-  //    } catch (IOException e1) {
-  //      e1.printStackTrace();
-  //    }
-  //  }
-  //  return null;
-  //}
+  @GET
+  @Path("ontology.nq")
+  @Override
+  public Response getOntologyAll() {
+    try {
+      FileAndMeta all = this.repo.getOntologyAll();
+      ResponseBuilder rBuild = Response.ok(all.data, all.contentType);
+      return rBuild.build();
+    } catch (Exception e) {
+      try {
+        // Create Json error response
+        Gson gson = new Gson();
+        ErrorMessage error = new ErrorMessage(e.getMessage());
+        String jsonData = gson.toJson(error);
+
+        // Prepare the response
+        response.setContentType("application/json");
+        response.setCharacterEncoding("utf-8");
+        response.setStatus(500);
+
+        // Send the response
+        response.getWriter().print(jsonData.toString());
+        response.getWriter().flush();
+      } catch (IOException e1) {
+        e1.printStackTrace();
+      }
+    }
+    return null;
+  }
 
 }
\ No newline at end of file
diff --git a/server/src/main/java/org/diskproject/server/repository/DiskRepository.java b/server/src/main/java/org/diskproject/server/repository/DiskRepository.java
index 2a6ecfd..238ef7f 100644
--- a/server/src/main/java/org/diskproject/server/repository/DiskRepository.java
+++ b/server/src/main/java/org/diskproject/server/repository/DiskRepository.java
@@ -737,7 +737,7 @@ public Entity getOrCreateEntity(String username) {
         return this.diskDB.loadOrRegisterEntity(username);
     }
 
-    /*public FileAndMeta getOntologyAll() {
+    public FileAndMeta getOntologyAll() {
         this.rdf.startRead();
         Dataset all = this.rdf.fac.getDataset();
 		ByteArrayOutputStream rawBytes = new ByteArrayOutputStream(); 
@@ -746,5 +746,5 @@ public Entity getOrCreateEntity(String username) {
 		FileAndMeta fileData = new FileAndMeta(bytes, "application/n-quads");
         this.rdf.end();
         return fileData;
-    }*/
+    }
 }
diff --git a/shared/src/main/java/org/diskproject/shared/api/DiskService.java b/shared/src/main/java/org/diskproject/shared/api/DiskService.java
index 92f27ea..7b05f95 100644
--- a/shared/src/main/java/org/diskproject/shared/api/DiskService.java
+++ b/shared/src/main/java/org/diskproject/shared/api/DiskService.java
@@ -220,8 +220,8 @@ public Response getOutputData(
       @JsonProperty("request") ExternalDataRequest r);
 
   // Download ontologies
-  //@GET
-  //@Path("ontology.nq")
-  //@Produces("application/rdf+xml")
-  //public Response getOntologyAll();
+  @GET
+  @Path("ontology.nq")
+  @Produces("application/rdf+xml")
+  public Response getOntologyAll();
 }
\ No newline at end of file