diff --git a/caikit_nlp/modules/text_generation/peft_prompt_tuning.py b/caikit_nlp/modules/text_generation/peft_prompt_tuning.py
index aa89adb7..a40c3aca 100644
--- a/caikit_nlp/modules/text_generation/peft_prompt_tuning.py
+++ b/caikit_nlp/modules/text_generation/peft_prompt_tuning.py
@@ -187,7 +187,7 @@ def run(
         exponential_decay_length_penalty: Optional[
             Union[Tuple[int, float], ExponentialDecayLengthPenalty]
         ] = None,
-        stop_sequences: Optional[str] = None,
+        stop_sequences: Optional[List[str]] = None,
     ) -> GeneratedTextResult:
         """
             Run the full text generation model.
@@ -247,7 +247,7 @@ def run_stream_out(
         exponential_decay_length_penalty: Optional[
             Union[Tuple[int, float], ExponentialDecayLengthPenalty]
         ] = None,
-        stop_sequences: Optional[str] = None,
+        stop_sequences: Optional[List[str]] = None,
     ) -> Iterable[GeneratedTextStreamResult]:
         """Run the text generation model with output streaming
 
diff --git a/caikit_nlp/modules/text_generation/peft_tgis_remote.py b/caikit_nlp/modules/text_generation/peft_tgis_remote.py
index ef3eb6fc..6b712104 100644
--- a/caikit_nlp/modules/text_generation/peft_tgis_remote.py
+++ b/caikit_nlp/modules/text_generation/peft_tgis_remote.py
@@ -184,7 +184,7 @@ def run(
         exponential_decay_length_penalty: Optional[
             Union[Tuple[int, float], ExponentialDecayLengthPenalty]
         ] = None,
-        stop_sequences: Optional[str] = None,
+        stop_sequences: Optional[List[str]] = None,
     ) -> GeneratedTextResult:
         """Run inference against the model running in TGIS.
 
@@ -240,7 +240,7 @@ def run_stream_out(
         exponential_decay_length_penalty: Optional[
             Union[Tuple[int, float], ExponentialDecayLengthPenalty]
         ] = None,
-        stop_sequences: Optional[str] = None,
+        stop_sequences: Optional[List[str]] = None,
     ) -> Iterable[GeneratedTextStreamResult]:
         """Run output stream inferencing against the model running in TGIS
 
diff --git a/caikit_nlp/modules/text_generation/text_generation_tgis.py b/caikit_nlp/modules/text_generation/text_generation_tgis.py
index 61a5331b..e2130ed7 100644
--- a/caikit_nlp/modules/text_generation/text_generation_tgis.py
+++ b/caikit_nlp/modules/text_generation/text_generation_tgis.py
@@ -14,7 +14,7 @@
 
 
 # Standard
-from typing import Iterable, Optional, Tuple, Union
+from typing import Iterable, List, Optional, Tuple, Union
 import os
 
 # Third Party
@@ -220,7 +220,7 @@ def run(
         exponential_decay_length_penalty: Optional[
             Union[Tuple[int, float], ExponentialDecayLengthPenalty]
         ] = None,
-        stop_sequences: Optional[str] = None,
+        stop_sequences: Optional[List[str]] = None,
     ) -> GeneratedTextResult:
         """Run inference against the model running in TGIS.
 
@@ -271,7 +271,7 @@ def run_stream_out(
         exponential_decay_length_penalty: Optional[
             Union[Tuple[int, float], ExponentialDecayLengthPenalty]
         ] = None,
-        stop_sequences: Optional[str] = None,
+        stop_sequences: Optional[List[str]] = None,
     ) -> Iterable[GeneratedTextStreamResult]:
         """Run output stream inferencing for text generation module.
 
diff --git a/caikit_nlp/toolkit/text_generation/model_run_utils.py b/caikit_nlp/toolkit/text_generation/model_run_utils.py
index b8454249..45699166 100644
--- a/caikit_nlp/toolkit/text_generation/model_run_utils.py
+++ b/caikit_nlp/toolkit/text_generation/model_run_utils.py
@@ -15,7 +15,7 @@
 """Utility functions used for executing run function for text_generation"""
 
 # Standard
-from typing import Optional, Tuple, Union
+from typing import List, Optional, Tuple, Union
 
 # Third Party
 from transformers import StoppingCriteria, TextStreamer
@@ -97,7 +97,7 @@
         consist of: (start_index, decay_factor) where start_index
         indicates where penalty starts and decay_factor represents the factor
         of exponential decay
-    stop_sequences: List[str]:
+    stop_sequences: List[str]
         List of strings to be used as stopping criteria
 """
 
@@ -148,7 +148,7 @@ def generate_text_func(
     exponential_decay_length_penalty: Optional[
         Union[Tuple[int, float], ExponentialDecayLengthPenalty]
     ] = None,
-    stop_sequences: Optional[str] = None,
+    stop_sequences: Optional[List[str]] = None,
     **kwargs,
 ):
     """
@@ -256,7 +256,7 @@ def generate_text_func_stream(
     exponential_decay_length_penalty: Optional[
         Union[Tuple[int, float], ExponentialDecayLengthPenalty]
     ] = None,
-    stop_sequences: Optional[str] = None,
+    stop_sequences: Optional[List[str]] = None,
     **kwargs,
 ):
     """