diff --git a/README.md b/README.md
index b355cfff..afb7ab60 100644
--- a/README.md
+++ b/README.md
@@ -280,7 +280,7 @@ Now let's see what the YAML config says. First impression, it is pretty intuitiv
  <summary>Preprocessor config: text-prep.yml (click to expand...)</summary>
  
 ```yaml
-!PunctSplitPreprocessor
+!SentSplitPreprocessor
 parameters:
   start_doc_id: 0
   random_doc_id: True
diff --git a/tests/yaml/preprocessor1.yml b/tests/yaml/preprocessor1.yml
index e9270bd6..35e8f6f4 100644
--- a/tests/yaml/preprocessor1.yml
+++ b/tests/yaml/preprocessor1.yml
@@ -1,4 +1,4 @@
-!PunctSplitPreprocessor
+!SentSplitPreprocessor
 parameters:
   start_doc_id: 0
   random_doc_id: True
diff --git a/tests/yaml/test-preprocessor.yml b/tests/yaml/test-preprocessor.yml
index e9270bd6..35e8f6f4 100644
--- a/tests/yaml/test-preprocessor.yml
+++ b/tests/yaml/test-preprocessor.yml
@@ -1,4 +1,4 @@
-!PunctSplitPreprocessor
+!SentSplitPreprocessor
 parameters:
   start_doc_id: 0
   random_doc_id: True
diff --git a/tutorials/component-yaml-spec.md b/tutorials/component-yaml-spec.md
index 394b831a..17d2367b 100644
--- a/tutorials/component-yaml-spec.md
+++ b/tutorials/component-yaml-spec.md
@@ -65,7 +65,7 @@ In this example, we define a `TorchvisionEncoder` that loads a pretrained VGG16
 |`!CLS`| Component Type |
 |---|---|
 |`!BasePreprocessor`|Preprocessor|
-|`!PunctSplitPreprocessor`|Preprocessor|
+|`!SentSplitPreprocessor`|Preprocessor|
 |`!BaseImagePreprocessor`|Preprocessor|
 |`!BaseTextPreprocessor`|Preprocessor|
 |`!VanillaSlidingPreprocessor`|Preprocessor|
@@ -214,7 +214,7 @@ Note that how we defines a map under `kwargs` to describe the arguments, they wi
 The examples above are all about encoder. In fact, every component including encoder, preprocessor, router, indexer can all be described with YAML and loaded to GNES. For example,
 
 ```yaml
-!PunctSplitPreprocessor
+!SentSplitPreprocessor
 parameters:
   start_doc_id: 0
   random_doc_id: True
diff --git a/yaml-example/component/preprocessor.yml b/yaml-example/component/preprocessor.yml
index e9270bd6..35e8f6f4 100644
--- a/yaml-example/component/preprocessor.yml
+++ b/yaml-example/component/preprocessor.yml
@@ -1,4 +1,4 @@
-!PunctSplitPreprocessor
+!SentSplitPreprocessor
 parameters:
   start_doc_id: 0
   random_doc_id: True