diff --git a/a2a/weather_service/pyproject.toml b/a2a/weather_service/pyproject.toml
index b6bd6e99..9ac1ea88 100644
--- a/a2a/weather_service/pyproject.toml
+++ b/a2a/weather_service/pyproject.toml
@@ -18,7 +18,7 @@ dependencies = [
     "mlflow[langchain,kubernetes]>=3.11.1,<4",
     "pydantic-settings>=2.8.1",
     "langchain-mcp-adapters>=0.1.0",
-    "python-keycloak>=5.5.1",
+    "python-keycloak>=7.1.1",
     "opentelemetry-exporter-otlp",
     # Auto-instrument httpx so outgoing MCP tool calls propagate traceparent
     "opentelemetry-instrumentation-httpx>=0.49b0",