diff --git a/tests/sources/python-config-test.py b/tests/sources/python-config-test.py
index de8a61d4..cc0a3cb5 100644
--- a/tests/sources/python-config-test.py
+++ b/tests/sources/python-config-test.py
@@ -27,9 +27,9 @@
 if os_type == 'Darwin': expected_ld_library_extension = 'dylib'
 
 if pkg_installer:
-    expected_lib_dir_path = f'/Library/Frameworks/Python.framework/Versions/{version_major}.{version_minor}/lib'
+    expected_lib_dir_path = '/Library/Frameworks/Python.framework/Versions/{0}.{1}/lib'.format(version_major, version_minor)
 else:
-    expected_lib_dir_path = f'{os.getenv("AGENT_TOOLSDIRECTORY")}/Python/{version}/x64/lib'
+    expected_lib_dir_path = '{os.getenv("AGENT_TOOLSDIRECTORY")}/Python/{0}/x64/lib'.format(version)
 
 # Check modules
 ### Validate libraries path
@@ -81,4 +81,4 @@
 if sys.version_info < (3, 12):
     if not have_libreadline:
         print('Missing libreadline')
-        exit(1)
\ No newline at end of file
+        exit(1)