diff --git a/requirements.in b/requirements.in
index 0d811176..e43dd462 100644
--- a/requirements.in
+++ b/requirements.in
@@ -10,4 +10,5 @@ py-githooks
 pytest
 semver
 twine
+typing_extensions
 wheel
diff --git a/requirements.txt b/requirements.txt
index 9ba6ece8..c35804ff 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -53,7 +53,7 @@ toml==0.10.0              # via black, coverage
 tqdm==4.41.0              # via twine
 twine==3.1.1
 typed-ast==1.4.0          # via black, mypy
-typing-extensions==3.7.4.1  # via mypy
+typing-extensions==3.7.4.1
 urllib3==1.25.7           # via requests
 wcwidth==0.1.7            # via pytest
 webencodings==0.5.1       # via bleach
diff --git a/setup.py b/setup.py
index 53d5330e..30d37a5a 100644
--- a/setup.py
+++ b/setup.py
@@ -38,7 +38,7 @@ def readme() -> str:
         package_dir={"": "src"},
         packages=find_packages("./src"),
         zip_safe=False,
-        install_requires=[],
+        install_requires=["typing_extensions"],
         setup_requires=["setuptools_scm"],
         entry_points={"pytest11": ["syrupy = syrupy"]},
         python_requires=python_requires,