diff --git a/tests/ra_aid/test_llm.py b/tests/ra_aid/test_llm.py
index 831ed1c..69a72d5 100644
--- a/tests/ra_aid/test_llm.py
+++ b/tests/ra_aid/test_llm.py
@@ -128,12 +128,12 @@ def test_estimate_tokens():
 
     # Test string content
     assert CiaynAgent._estimate_tokens("test") == 1  # 4 bytes
-    assert CiaynAgent._estimate_tokens("hello world") == 2  # 11 bytes
+    assert CiaynAgent._estimate_tokens("hello world") == 3  # 11 bytes
     assert CiaynAgent._estimate_tokens("🚀") == 1  # 4 bytes
 
     # Test message content
     msg = HumanMessage(content="test message")
-    assert CiaynAgent._estimate_tokens(msg) == 3  # 11 bytes
+    assert CiaynAgent._estimate_tokens(msg) == 4  # 11 bytes
 
 
 def test_initialize_openai(clean_env, mock_openai):