diff --git a/archive-doc-gen/src/requirements-dev.txt b/archive-doc-gen/src/requirements-dev.txt
index fe85db79c..f0c72aca1 100644
--- a/archive-doc-gen/src/requirements-dev.txt
+++ b/archive-doc-gen/src/requirements-dev.txt
@@ -15,6 +15,6 @@ chardet
 azure-keyvault-secrets
 coverage
 flake8==7.3.0
-black==25.12.0
+black==26.3.1
 autoflake==2.3.1
 isort==7.0.0
\ No newline at end of file
diff --git a/archive-doc-gen/src/requirements.txt b/archive-doc-gen/src/requirements.txt
index d9b15248b..6cad60e1b 100644
--- a/archive-doc-gen/src/requirements.txt
+++ b/archive-doc-gen/src/requirements.txt
@@ -14,7 +14,7 @@ gunicorn==23.0.0
 pydantic==2.12.5
 pydantic-settings==2.12.0
 flake8==7.3.0
-black==25.12.0
+black==26.3.1
 autoflake==2.3.1
 isort==7.0.0
 opentelemetry-exporter-otlp-proto-grpc