diff --git a/warehouse/oso_agent/pyproject.toml b/warehouse/oso_agent/pyproject.toml
index f0572452ba..1964c64693 100644
--- a/warehouse/oso_agent/pyproject.toml
+++ b/warehouse/oso_agent/pyproject.toml
@@ -7,7 +7,7 @@ requires-python = ">=3.10"
 authors = [{ name = "OSO Team", email = "opensource-observer@googlegroups.com" }]
 dependencies = [
     "arize-phoenix-otel>=0.10.1",
-    "arize-phoenix[evals]==11.28.0",
+    "arize-phoenix[evals]==12.20.0",
     "discord-py>=2.5.2",
     "dotenv>=0.9.9",
     "llama-index>=0.12.29",