diff --git a/pyproject.toml b/pyproject.toml
index 612739d..758082e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,11 +24,11 @@ dependencies = [
     "openai==1.3.8",
     "prompt-toolkit==3.0.41",
     "pytest==7.3.1",
-    "PyYAML==6.0",
+    "PyYAML==6.0.1",
     "rich==13.7.0",
     "tiktoken==0.5.2",
     "tokenizers==0.15.0",
-    "typing_extensions==4.5.0",
+    "typing_extensions==4.7.1",
 ]
 
 [project.optional-dependencies]
diff --git a/tests/test_gpt.py b/tests/test_gpt.py
new file mode 100644
index 0000000..b0f6314
--- /dev/null
+++ b/tests/test_gpt.py
@@ -0,0 +1,18 @@
+
+import pytest
+import gptcli
+import sys
+from gptcli.gpt import main
+
+def test_version_argument(monkeypatch, capsys):
+    monkeypatch.setattr(sys, "argv", ["gpt", "-v"])
+    monkeypatch.setattr("gptcli.gpt.choose_config_file", lambda x: None)
+
+    with pytest.raises(SystemExit) as e:
+        main()
+
+    assert e.type == SystemExit
+    assert e.value.code == 0
+
+    captured = capsys.readouterr()
+    assert f"gpt-cli v{gptcli.__version__}\n" == captured.out