diff --git a/lambdas/ack_backend/Dockerfile b/lambdas/ack_backend/Dockerfile
index ffa2a52da..4b34db84c 100644
--- a/lambdas/ack_backend/Dockerfile
+++ b/lambdas/ack_backend/Dockerfile
@@ -1,4 +1,4 @@
-FROM public.ecr.aws/lambda/python:3.11 AS base
+FROM public.ecr.aws/lambda/python:3.13 AS base
 
 RUN mkdir -p /home/appuser && \
     echo 'appuser:x:1001:1001::/home/appuser:/sbin/nologin' >> /etc/passwd && \
diff --git a/lambdas/batch_processor_filter/Dockerfile b/lambdas/batch_processor_filter/Dockerfile
index 6f81c97b8..085778beb 100644
--- a/lambdas/batch_processor_filter/Dockerfile
+++ b/lambdas/batch_processor_filter/Dockerfile
@@ -1,4 +1,4 @@
-FROM public.ecr.aws/lambda/python:3.11 AS base
+FROM public.ecr.aws/lambda/python:3.13 AS base
 
 RUN mkdir -p /home/appuser && \
     echo 'appuser:x:1001:1001::/home/appuser:/sbin/nologin' >> /etc/passwd && \
diff --git a/lambdas/delta_backend/Dockerfile b/lambdas/delta_backend/Dockerfile
index 16d535024..ff5218e56 100644
--- a/lambdas/delta_backend/Dockerfile
+++ b/lambdas/delta_backend/Dockerfile
@@ -1,4 +1,4 @@
-FROM public.ecr.aws/lambda/python:3.11 AS base
+FROM public.ecr.aws/lambda/python:3.13 AS base
 
 # Create a non-root user with a specific UID and GID
 RUN mkdir -p /home/appuser && \
diff --git a/lambdas/filenameprocessor/Dockerfile b/lambdas/filenameprocessor/Dockerfile
index fc4cc4aee..2ca36ed63 100644
--- a/lambdas/filenameprocessor/Dockerfile
+++ b/lambdas/filenameprocessor/Dockerfile
@@ -1,4 +1,4 @@
-FROM public.ecr.aws/lambda/python:3.11 AS base
+FROM public.ecr.aws/lambda/python:3.13 AS base
 
 # Create non-root user
 RUN mkdir -p /home/appuser && \
diff --git a/lambdas/mesh_processor/Dockerfile b/lambdas/mesh_processor/Dockerfile
index 848cd1300..2437cc964 100644
--- a/lambdas/mesh_processor/Dockerfile
+++ b/lambdas/mesh_processor/Dockerfile
@@ -1,4 +1,4 @@
-FROM public.ecr.aws/lambda/python:3.11 AS base
+FROM public.ecr.aws/lambda/python:3.13 AS base
 
 # Create a non-root user with a specific UID and GID
 RUN mkdir -p /home/appuser && \
diff --git a/lambdas/recordprocessor/Dockerfile b/lambdas/recordprocessor/Dockerfile
index 00557b821..de2ecaaed 100644
--- a/lambdas/recordprocessor/Dockerfile
+++ b/lambdas/recordprocessor/Dockerfile
@@ -1,4 +1,4 @@
-FROM public.ecr.aws/lambda/python:3.11 AS base
+FROM public.ecr.aws/lambda/python:3.13 AS base
 
 # Create a non-root user with a specific UID and GID
 RUN mkdir -p /home/appuser && \