diff --git a/Dockerfile b/Dockerfile
index 41f65ac..7d7d244 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 
-FROM python:3.7
+FROM python:3.9
 
 WORKDIR /program
 
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 43bbfbd..f8029a1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ Jinja2==3.0.2
 jsonschema==4.2.1
 MarkupSafe==2.0.1
 mypy-extensions==0.4.3
-numpy==1.21.4
+numpy==1.22.0
 pandas==1.3.4
 pathspec==0.9.0
 platformdirs==2.4.0