diff --git a/backend/autometabuilder/tools/validate_workflows.py b/backend/autometabuilder/tools/validate_workflows.py
index 50fa6cd..bb6858e 100755
--- a/backend/autometabuilder/tools/validate_workflows.py
+++ b/backend/autometabuilder/tools/validate_workflows.py
@@ -9,7 +9,7 @@ try:
     import jsonschema
     from jsonschema import Draft202012Validator
 except ImportError:
-    print("Error: jsonschema library not found. Install with: poetry add jsonschema")
+    print("Error: jsonschema library not found. Install with: poetry install")
     sys.exit(1)
 
 
diff --git a/backend/tests/test_workflow_validation.py b/backend/tests/test_workflow_validation.py
index 8225062..94c6db3 100644
--- a/backend/tests/test_workflow_validation.py
+++ b/backend/tests/test_workflow_validation.py
@@ -99,7 +99,8 @@ def test_validate_workflow_with_missing_name(tmp_path):
     
     is_valid, error_msg = validate_workflow_file(workflow_file, schema)
     assert not is_valid
-    assert "name" in error_msg.lower() or "required" in error_msg.lower()
+    # jsonschema reports missing required property
+    assert "required" in error_msg.lower() or "'name'" in error_msg
 
 
 def test_validate_workflow_with_empty_nodes(tmp_path):
@@ -116,8 +117,8 @@ def test_validate_workflow_with_empty_nodes(tmp_path):
     
     is_valid, error_msg = validate_workflow_file(workflow_file, schema)
     assert not is_valid
-    # jsonschema will report "[] should be non-empty"
-    assert "nodes" in error_msg.lower() or "empty" in error_msg.lower()
+    # jsonschema reports "[] is too short" for minItems violation
+    assert "too short" in error_msg.lower() and "nodes" in error_msg.lower()
 
 
 def test_validate_workflow_with_invalid_json(tmp_path):