diff --git a/requirements.txt b/requirements.txt
index 96341c2..7ce34ca 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ jinja2
 boto3
 botocore
 boto3-stubs
-dspy
+dspy==2.6.27
 numpy==2.3.2
 virtualenv==20.31.2
 urllib3==2.5.0