diff --git a/agents/coder/requirements.txt b/agents/coder/requirements.txt
index 9c1a1a6..498db35 100644
--- a/agents/coder/requirements.txt
+++ b/agents/coder/requirements.txt
@@ -4,7 +4,7 @@ pydantic>=2.5.3
 redis>=4.2.0,<8.0.0
 httpx>=0.28.1
 python-dotenv>=1.0.0
-chromadb>=0.4.22,<1.2.0
+chromadb>=1.5.8,<1.6.0
 structlog>=24.1.0
 python-json-logger>=2.0.7
 mcp>=0.1.0