diff --git a/pyproject.toml b/pyproject.toml
index 45c6e921..b6272145 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -16,7 +16,7 @@ dependencies = [
     "a2a-sdk==0.3.7", # For Google Agent2Agent protocol
     "deprecated==1.2.18",
     "google-adk==1.19.0", # For basic agent architecture
-    "litellm>=1.74.3", # For model inference
+    "litellm==1.74.3", # For model inference
     "loguru==0.7.3", # For better logging
     "opentelemetry-exporter-otlp==1.37.0",
     "opentelemetry-instrumentation-logging>=0.56b0",
@@ -73,10 +73,6 @@ dev = [
     "pytest-xdist>=3.8.0",
 ]
 
-responses = [
-    "litellm>=1.79.3"
-]
-
 [dependency-groups]
 dev = [
     "pre-commit>=4.2.0",            # Format checking
diff --git a/veadk/utils/misc.py b/veadk/utils/misc.py
index 6c20cf0c..6755479e 100644
--- a/veadk/utils/misc.py
+++ b/veadk/utils/misc.py
@@ -207,8 +207,7 @@ def check_litellm_version(min_version: str):
         required = parse_version(min_version)
         if installed < required:
             raise ValueError(
-                "You have used `enable_responses=True`. If you want to use the `responses_api`, please install the relevant support:"
-                "\npip install veadk-python[responses]"
+                "You have used `enable_responses=True`. If you want to use the `responses_api`, please ensure that `litellm>=1.79.3`"
             )
     except ImportError:
         raise ImportError(