diff --git a/agents/core-logic/requirements.txt b/agents/core-logic/requirements.txt
index 92106db..6ce354e 100644
--- a/agents/core-logic/requirements.txt
+++ b/agents/core-logic/requirements.txt
@@ -1,27 +1,27 @@
 # OSVauco agent dependencies
 
 # ADK — must stay <2.0.0 while google-cloud-aiplatform[adk,agent_engines] requires google-adk<2.0.0
-google-adk>=1.0.0,<2.0.0
-google-cloud-aiplatform[adk,agent_engines,evaluation]>=1.112.0
+google-adk==1.34.1
+google-cloud-aiplatform[adk,agent_engines,evaluation]==1.154.0
 
 # Secret Manager integration
-google-cloud-secret-manager>=2.20.0
+google-cloud-secret-manager==2.28.0
 
 # MCP toolset
-httpx>=0.27.0
-google-auth>=2.29.0
-google-auth-httplib2>=0.2.0
+httpx==0.28.1
+google-auth==2.53.0
+google-auth-httplib2==0.4.0
 
 # Observability
-opentelemetry-sdk>=1.25.0
-opentelemetry-exporter-gcp-trace>=1.8.0
-google-cloud-logging>=3.10.0
-google-cloud-monitoring>=2.22.0
+opentelemetry-sdk==1.41.1
+opentelemetry-exporter-gcp-trace==1.12.0
+google-cloud-logging==3.15.0
+google-cloud-monitoring==2.30.0
 
 # HTTP server for Cloud Run
-uvicorn[standard]>=0.29.0
-fastapi>=0.111.0
+uvicorn[standard]==0.48.0
+fastapi==0.136.3
 
 # Utilities
-python-dotenv>=1.0.0
-pydantic>=2.7.0
+python-dotenv==1.2.2
+pydantic==2.12.5