diff --git a/.github/workflows/core_code_checks.yml b/.github/workflows/core_code_checks.yml
index 3c9195f2a5..86ff5ccca8 100644
--- a/.github/workflows/core_code_checks.yml
+++ b/.github/workflows/core_code_checks.yml
@@ -15,10 +15,10 @@ jobs:
 
     steps:
       - uses: actions/checkout@v3
-      - name: Set up Python 3.8.12
+      - name: Set up Python 3.7.13
         uses: actions/setup-python@v4
         with:
-          python-version: '3.8.12'
+          python-version: '3.7.13'
       - uses: actions/cache@v2
         with:
           path: ${{ env.pythonLocation }}
diff --git a/nerfstudio/data/datamanagers/base_datamanager.py b/nerfstudio/data/datamanagers/base_datamanager.py
index 1e6b6669d2..a895fb7b80 100644
--- a/nerfstudio/data/datamanagers/base_datamanager.py
+++ b/nerfstudio/data/datamanagers/base_datamanager.py
@@ -20,7 +20,7 @@
 
 from abc import abstractmethod
 from dataclasses import dataclass, field
-from typing import Dict, List, Literal, Optional, Tuple, Type, Union
+from typing import Dict, List, Optional, Tuple, Type, Union
 
 import torch
 import tyro
@@ -29,6 +29,7 @@
 from torch.nn import Parameter
 from torch.utils.data import Dataset
 from torch.utils.data.distributed import DistributedSampler
+from typing_extensions import Literal
 
 from nerfstudio.cameras.camera_optimizers import CameraOptimizerConfig
 from nerfstudio.cameras.rays import RayBundle
diff --git a/nerfstudio/engine/trainer.py b/nerfstudio/engine/trainer.py
index 60f0a6dbeb..d35ebfeee4 100644
--- a/nerfstudio/engine/trainer.py
+++ b/nerfstudio/engine/trainer.py
@@ -21,11 +21,12 @@
 import functools
 import os
 import time
-from typing import Dict, List, Literal, Tuple
+from typing import Dict, List, Tuple
 
 import torch
 from rich.console import Console
 from torch.cuda.amp.grad_scaler import GradScaler
+from typing_extensions import Literal
 
 from nerfstudio.configs import base_config as cfg
 from nerfstudio.engine.callbacks import (
diff --git a/nerfstudio/pipelines/base_pipeline.py b/nerfstudio/pipelines/base_pipeline.py
index 11930143b8..c0927c57aa 100644
--- a/nerfstudio/pipelines/base_pipeline.py
+++ b/nerfstudio/pipelines/base_pipeline.py
@@ -21,7 +21,7 @@
 from abc import abstractmethod
 from dataclasses import dataclass, field
 from time import time
-from typing import Any, Dict, List, Literal, Optional, Type, Union, cast
+from typing import Any, Dict, List, Optional, Type, Union, cast
 
 import torch
 import torch.distributed as dist
@@ -35,6 +35,7 @@
 from torch import nn
 from torch.nn import Parameter
 from torch.nn.parallel import DistributedDataParallel as DDP
+from typing_extensions import Literal
 
 from nerfstudio.configs import base_config as cfg
 from nerfstudio.data.datamanagers.base_datamanager import (
diff --git a/nerfstudio/pipelines/dynamic_batch.py b/nerfstudio/pipelines/dynamic_batch.py
index b169dfd559..788f68e82c 100644
--- a/nerfstudio/pipelines/dynamic_batch.py
+++ b/nerfstudio/pipelines/dynamic_batch.py
@@ -17,9 +17,10 @@
 """
 
 from dataclasses import dataclass, field
-from typing import Literal, Type
+from typing import Type
 
 import torch
+from typing_extensions import Literal
 
 from nerfstudio.data.datamanagers.base_datamanager import VanillaDataManager
 from nerfstudio.pipelines.base_pipeline import VanillaPipeline, VanillaPipelineConfig
diff --git a/nerfstudio/utils/eval_utils.py b/nerfstudio/utils/eval_utils.py
index 29a0dcada5..7401a916c4 100644
--- a/nerfstudio/utils/eval_utils.py
+++ b/nerfstudio/utils/eval_utils.py
@@ -20,11 +20,12 @@
 import os
 import sys
 from pathlib import Path
-from typing import Literal, Optional, Tuple
+from typing import Optional, Tuple
 
 import torch
 import yaml
 from rich.console import Console
+from typing_extensions import Literal
 
 from nerfstudio.configs import base_config as cfg
 from nerfstudio.pipelines.base_pipeline import Pipeline
diff --git a/pyproject.toml b/pyproject.toml
index 59a74727e7..52b5abfc59 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -146,5 +146,5 @@ reportMissingTypeStubs = false
 reportPrivateImportUsage = false
 reportUndefinedVariable = false
 
-pythonVersion = "3.8"
+pythonVersion = "3.7"
 pythonPlatform = "Linux"