diff --git a/pom.xml b/pom.xml
index d89f94b443..2f004117e4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -37,8 +37,8 @@
         <dir.root>${project.build.directory}/alf_data</dir.root>
         <img.exe>convert</img.exe>
 
-        <dependency.alfresco-repository.version>8.174</dependency.alfresco-repository.version>
-        <dependency.alfresco-data-model.version>8.106</dependency.alfresco-data-model.version>
+        <dependency.alfresco-repository.version>8.178</dependency.alfresco-repository.version>
+        <dependency.alfresco-data-model.version>8.111</dependency.alfresco-data-model.version>
         <dependency.alfresco-core.version>8.32</dependency.alfresco-core.version>
 
         <dependency.alfresco-pdf-renderer.version>1.1</dependency.alfresco-pdf-renderer.version>
diff --git a/src/main/java/org/alfresco/rest/api/impl/GroupsImpl.java b/src/main/java/org/alfresco/rest/api/impl/GroupsImpl.java
index 99acdb8b6b..de7dcd7f15 100644
--- a/src/main/java/org/alfresco/rest/api/impl/GroupsImpl.java
+++ b/src/main/java/org/alfresco/rest/api/impl/GroupsImpl.java
@@ -87,7 +87,6 @@ public class GroupsImpl implements Groups
     private static final String DISPLAY_NAME = "displayName";
     private static final String AUTHORITY_NAME = "authorityName";
     private static final String ERR_MSG_MODIFY_FIXED_AUTHORITY = "Trying to modify a fixed authority";
-    private static final char[] illegalCharacters = {'/', '\\', '\r', '\n'};
 
     private final static Map<String, String> SORT_PARAMS_TO_NAMES;
     static
@@ -949,14 +948,6 @@ public class GroupsImpl implements Groups
                 throw new InvalidArgumentException("groupId is null or empty");
             }
 
-            for (char illegalCharacter : illegalCharacters)
-            {
-                if (groupId.indexOf(illegalCharacter) != -1)
-                {
-                    throw new IllegalArgumentException("groupId contains characters that are not permitted: "+groupId.charAt(groupId.indexOf(illegalCharacter)));
-                }
-            }
-
             if (groupAuthorityExists(groupId))
             {
                 throw new ConstraintViolatedException("Group '" + group.getId() + "' already exists.");
diff --git a/src/main/java/org/alfresco/rest/api/impl/PeopleImpl.java b/src/main/java/org/alfresco/rest/api/impl/PeopleImpl.java
index cf81755e77..9d8ea818cc 100644
--- a/src/main/java/org/alfresco/rest/api/impl/PeopleImpl.java
+++ b/src/main/java/org/alfresco/rest/api/impl/PeopleImpl.java
@@ -111,7 +111,6 @@ public class PeopleImpl implements People
             PermissionService.GROUP_PREFIX,
             PermissionService.ROLE_PREFIX
     };
-    private static final char[] illegalCharacters = {'/', '\\', '\r', '\n'};
 
     protected Nodes nodes;
 	protected Sites sites;
@@ -670,14 +669,6 @@ public class PeopleImpl implements People
             throw new InvalidArgumentException("Username exceeds max length of " + USERNAME_MAXLENGTH + " characters.");
         }
 
-        for (char illegalCharacter : illegalCharacters)
-        {
-            if (username.indexOf(illegalCharacter) != -1)
-            {
-                throw new IllegalArgumentException("Username contains characters that are not permitted: "+username.charAt(username.indexOf(illegalCharacter)));
-            }
-        }
-
         for (String prefix : RESERVED_AUTHORITY_PREFIXES)
         {
             if (username.toUpperCase().startsWith(prefix))
diff --git a/src/test/java/org/alfresco/rest/api/tests/GroupsTest.java b/src/test/java/org/alfresco/rest/api/tests/GroupsTest.java
index fb9e04432a..e28de0e99d 100644
--- a/src/test/java/org/alfresco/rest/api/tests/GroupsTest.java
+++ b/src/test/java/org/alfresco/rest/api/tests/GroupsTest.java
@@ -1450,11 +1450,11 @@ public class GroupsTest extends AbstractSingleNetworkSiteTest
             groupsProxy.createGroup(group, null, HttpServletResponse.SC_BAD_REQUEST);
         }
 
-        // Create group with an id that contains invalid characters ("/", "\", "\n", "\r") should return an error.
+        // Create group with an id that contains invalid characters {'/', '\\', '\n', '\r', '"'} should return an error.
         {
             setRequestContext(networkOne.getId(), networkAdmin, DEFAULT_ADMIN_PWD);
 
-            char[] invalidCharacters = {'/', '\\', '\n', '\r'};
+            char[] invalidCharacters = {'/', '\\', '\n', '\r', '"'};
             for (char invalidCharacter : invalidCharacters)
             {
                 Group group = new Group();
diff --git a/src/test/java/org/alfresco/rest/api/tests/TestPeople.java b/src/test/java/org/alfresco/rest/api/tests/TestPeople.java
index 4e228d5194..560c1c182e 100644
--- a/src/test/java/org/alfresco/rest/api/tests/TestPeople.java
+++ b/src/test/java/org/alfresco/rest/api/tests/TestPeople.java
@@ -331,14 +331,14 @@ public class TestPeople extends AbstractBaseApiTest
         person.setUserName("myUserName11111111111111111111111111111111111111111111111111111111111111111111111111111111@" + account1.getId());
         people.create(person, 400);
 
-        // create person with invalid characters ("/", "\", "\n", "\r")
+        // create person with invalid characters {'/', '\\', '\n', '\r', '"'}
         {
-            char[] invalidCharacters = {'/', '\\', '\n', '\r'};
+            char[] invalidCharacters = {'/', '\\', '\n', '\r', '"'};
 
             for (char invalidCharacter : invalidCharacters)
             {
                 person.setUserName("myUser" + invalidCharacter + "Name@" + account1.getId());
-        people.create(person, 400);
+                people.create(person, 400);
             }
         }