diff --git a/python/tests/test_run.py b/python/tests/test_run.py
index 84f3745..f918abe 100644
--- a/python/tests/test_run.py
+++ b/python/tests/test_run.py
@@ -1,15 +1,17 @@
 import subprocess as sp
+import sys
 import ry
 
 
 def test_python_version():
-    completed_proc = sp.run(["python", "--version"], capture_output=True)
+    python_exe = sys.executable
+    completed_proc = sp.run([python_exe, "--version"], capture_output=True)
     assert completed_proc.returncode == 0
     print(completed_proc)
     assert "python" in str(completed_proc.stdout).lower()
 
     thing = ry.run(
-        "python",
+        python_exe,
         "--version",
         # capture_output=True,
     )
@@ -21,7 +23,7 @@ def test_binary_output():
     cproc = sp.run(
         [
             # write out some weird binary data
-            "python",
+            sys.executable,
             "-c",
             "import sys; sys.stdout.buffer.write(b'\\x00\\x01\\x02\\x03\\x04\\x05\\x06\\x07\\x08\\x09\\x0a\\x0b\\x0c\\x0d\\x0e\\x0f')",
         ],