diff --git a/backend/internal/dto/user_group_dto.go b/backend/internal/dto/user_group_dto.go
index 44b51a9..90d3fb1 100644
--- a/backend/internal/dto/user_group_dto.go
+++ b/backend/internal/dto/user_group_dto.go
@@ -23,8 +23,8 @@ type UserGroupDtoWithUserCount struct {
 }
 
 type UserGroupCreateDto struct {
-	FriendlyName string `json:"friendlyName" binding:"required,min=3,max=30"`
-	Name         string `json:"name" binding:"required,min=3,max=30,userGroupName"`
+	FriendlyName string `json:"friendlyName" binding:"required,min=2,max=50"`
+	Name         string `json:"name" binding:"required,min=2,max=255"`
 }
 
 type UserGroupUpdateUsersDto struct {
diff --git a/backend/internal/dto/validations.go b/backend/internal/dto/validations.go
index 5199c6c..bec57db 100644
--- a/backend/internal/dto/validations.go
+++ b/backend/internal/dto/validations.go
@@ -28,13 +28,6 @@ var validateUsername validator.Func = func(fl validator.FieldLevel) bool {
 	return matched
 }
 
-var validateUserGroupName validator.Func = func(fl validator.FieldLevel) bool {
-	// The string can only contain lowercase letters, numbers, and underscores
-	regex := "^[a-z0-9_]*$"
-	matched, _ := regexp.MatchString(regex, fl.Field().String())
-	return matched
-}
-
 var validateClaimKey validator.Func = func(fl validator.FieldLevel) bool {
 	// The string can only contain letters and numbers
 	regex := "^[A-Za-z0-9]*$"
@@ -53,13 +46,6 @@ func init() {
 			log.Fatalf("Failed to register custom validation: %v", err)
 		}
 	}
-
-	if v, ok := binding.Validator.Engine().(*validator.Validate); ok {
-		if err := v.RegisterValidation("userGroupName", validateUserGroupName); err != nil {
-			log.Fatalf("Failed to register custom validation: %v", err)
-		}
-	}
-
 	if v, ok := binding.Validator.Engine().(*validator.Validate); ok {
 		if err := v.RegisterValidation("claimKey", validateClaimKey); err != nil {
 			log.Fatalf("Failed to register custom validation: %v", err)
diff --git a/frontend/src/routes/settings/admin/user-groups/user-group-form.svelte b/frontend/src/routes/settings/admin/user-groups/user-group-form.svelte
index 763ce35..478173d 100644
--- a/frontend/src/routes/settings/admin/user-groups/user-group-form.svelte
+++ b/frontend/src/routes/settings/admin/user-groups/user-group-form.svelte
@@ -22,12 +22,11 @@
 	};
 
 	const formSchema = z.object({
-		friendlyName: z.string().min(2).max(30),
+		friendlyName: z.string().min(2).max(50),
 		name: z
 			.string()
 			.min(2)
-			.max(30)
-			.regex(/^[a-z0-9_]+$/, 'Name can only contain lowercase letters, numbers, and underscores')
+			.max(255)
 	});
 	type FormSchema = typeof formSchema;