diff --git a/Dockerfile b/Dockerfile
index 2e37000..0895215 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -19,7 +19,7 @@ RUN microdnf install -y git && microdnf clean all
 # requirements file so the [flow_doctor]-only install above isn't
 # overridden by the [arcticdb,flow_doctor,rag] extras pinned for EC2.
 COPY requirements.txt ${LAMBDA_TASK_ROOT}/
-RUN pip install --no-cache-dir "alpha-engine-lib[flow_doctor] @ git+https://github.com/cipher813/alpha-engine-lib@v0.59.1" && \
+RUN pip install --no-cache-dir "alpha-engine-lib[flow_doctor] @ git+https://github.com/cipher813/alpha-engine-lib@v0.59.4" && \
     grep -vE "^#|^$|^pytest|^python-dotenv|^boto3|^botocore|^s3transfer|^alpha-engine-lib" requirements.txt > /tmp/req-lambda.txt && \
     pip install --no-cache-dir -r /tmp/req-lambda.txt && \
     rm -rf /root/.cache/pip /tmp/req-lambda.txt
diff --git a/requirements.txt b/requirements.txt
index 528f01e..2c19211 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,4 +29,4 @@ arcticdb>=6.11
 # invariant (ROADMAP L286). Gated default-OFF via
 # ``ALPHA_ENGINE_UNIVERSE_WRITER_LOCK_ENABLED``.
 # All additive surface — existing imports unchanged.
-alpha-engine-lib[arcticdb,flow_doctor,rag,contracts] @ git+https://github.com/cipher813/alpha-engine-lib@v0.59.1
+alpha-engine-lib[arcticdb,flow_doctor,rag,contracts] @ git+https://github.com/cipher813/alpha-engine-lib@v0.59.4