diff --git a/.circleci/config.yml b/.circleci/config.yml
index 3d1dfca9..899d741a 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -8,7 +8,7 @@ executors:
     # here we can define an executor that will be shared across different jobs
     python-executor:
         docker:
-            - image: python:3.7-slim-buster@sha256:fecbb1a9695d25c974906263c64ffba6548ce14a169ed36be58331659383c25e
+            - image: python:3.7-slim-buster@sha256:4029384971edfa9c4f145272e8631af9b288ecfabbce44edea88ca6f602244a9
               environment:
                   POETRY_CACHE: /work/.cache/poetry
                   PIP_CACHE_DIR: /work/.cache/pip
diff --git a/Dockerfile b/Dockerfile
index fe188a30..9d239517 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.7-slim-buster@sha256:50de4af76270c893fe36a9ae428951057d6e1a681312d11861970baa150a62e2
+FROM python:3.7-slim-buster@sha256:f731fc18583196a435a608b2e31b264a269219d452758e24341060632b24d0a8
 RUN apt update && apt install curl make git libopenblas-base -y
 RUN curl -sSL https://raw.githubusercontent.com/sdispater/poetry/master/get-poetry.py | python
 ENV SHELL /bin/bash -l