diff --git a/Dockerfile b/Dockerfile
index 35c64ff..0fe3fc2 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.7
+FROM python:3.9
 
 WORKDIR /app
 
diff --git a/dev.Dockerfile b/dev.Dockerfile
index a611fed..c47097c 100644
--- a/dev.Dockerfile
+++ b/dev.Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.7
+FROM python:3.9
 
 WORKDIR /app
 
diff --git a/requirements.txt b/requirements.txt
index 9211e2a..fbb5db6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ h11==0.13.0
 idna==3.3
 importlib-metadata==4.11.3
 mypy-extensions==0.4.3
-numpy==1.21.6
+numpy==1.22.0
 pandas==1.3.5
 pathspec==0.9.0
 platformdirs==2.5.2