diff --git a/backend/src/impl/default_controllers_impl.py b/backend/src/impl/default_controllers_impl.py
index 86e746b6..6a0f5901 100644
--- a/backend/src/impl/default_controllers_impl.py
+++ b/backend/src/impl/default_controllers_impl.py
@@ -17,7 +17,7 @@
 from explainaboard.loaders.loader_registry import get_supported_file_types_for_loader
 from explainaboard.metric import MetricStats
 from explainaboard.processors.processor_registry import get_metric_list_for_processor
-from explainaboard.utils.tokenizer import get_default_tokenizer
+from explainaboard.utils import tokenizer as exb_tokenzier
 from explainaboard_web.impl.auth import get_user
 from explainaboard_web.impl.db_utils.dataset_db_utils import DatasetDBUtils
 from explainaboard_web.impl.db_utils.system_db_utils import SystemDBUtils
@@ -267,21 +267,17 @@ def systems_analyses_post(body: SystemsAnalysesBody):
             system_output_info.features[feature_name] = feature
 
         metric_configs = [
-            getattr(exb_metric, metric_config_dict["cls"])(**metric_config_dict)
+            getattr(exb_metric, metric_config_dict["cls_name"])(**metric_config_dict)
             for metric_config_dict in system_output_info.metric_configs
         ]
 
         system_output_info.metric_configs = metric_configs
-
-        # The order of getting the processor first then setting
-        # the tokenizer is unnatural, but in the SDK get_default_tokenizer
-        # relies on the processor's TaskType inforamtion
-
-        processor = get_processor(TaskType(system_output_info.task_name))
-        system_output_info.tokenizer = get_default_tokenizer(
-            task_type=TaskType(system_output_info.task_name), lang=system_info.language
+        cls_name = system_output_info.tokenizer.pop("cls_name")
+        system_output_info.tokenizer = getattr(exb_tokenzier, cls_name)(
+            **system_output_info.tokenizer
         )
 
+        processor = get_processor(TaskType(system_output_info.task_name))
         metric_stats = [MetricStats(stat) for stat in system.metric_stats]
 
         # Get the entire system outputs
diff --git a/backend/templates/requirements.mustache b/backend/templates/requirements.mustache
index 1dcbf0b1..ce0be5dc 100644
--- a/backend/templates/requirements.mustache
+++ b/backend/templates/requirements.mustache
@@ -7,7 +7,7 @@ Flask-PyMongo
 swagger-ui-bundle >= 0.0.9
 python-dotenv
 pyjwt[crypto] == 2.3.0
-explainaboard == 0.8.14
+explainaboard == 0.8.15
 en_core_web_sm@https://github.com/explosion/spacy-models/releases/download/en_core_web_sm-3.2.0/en_core_web_sm-3.2.0-py3-none-any.whl
 pre-commit
 marisa_trie
diff --git a/openapi/openapi.yaml b/openapi/openapi.yaml
index f0cf41ab..38f4c7e8 100644
--- a/openapi/openapi.yaml
+++ b/openapi/openapi.yaml
@@ -486,14 +486,14 @@ components:
               language:
                 type: string
                 nullable: True
-              cls:
+              cls_name:
                 type: string
             additionalProperties: true
-            required: [name, cls]
+            required: [name, cls_name]
         tokenizer:
           type: object
           properties:
-            cls:
+            cls_name:
               type: string
               example: "SingleSpaceTokenizer"
         features: