diff --git a/src/tests/requirements.txt b/src/tests/requirements.txt
index 63fe3a827..96b2826d5 100644
--- a/src/tests/requirements.txt
+++ b/src/tests/requirements.txt
@@ -17,7 +17,7 @@ psycopg==3.2.3
 SPARQLWrapper==2.0.0
 python-dotenv==1.0.1
 rapidfuzz==3.10.1
-ds-caselaw-marklogic-api-client==25.0.0
+ds-caselaw-marklogic-api-client==27.4.0
 boto3-stubs[essential] ==1.35.57
 aws_lambda_powertools ==3.2.0
 pytest-socket==0.7.0