diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index d60fcfc..e3be2de 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -10,15 +10,11 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-24.04, ubuntu-22.04, ubuntu-20.04] # no ubuntugis @ ubuntu-24.04
-        python-version: ['3.11', '3.10', '3.9', '3.8', '3.7'] # , '3.6'] <- 3.6 needs setup.cfg
+        python-version: ['3.11', '3.10', '3.9', '3.8']
         gdal-version: ['3.8', '3.6', '3.4']
         exclude:
           - os: ubuntu-24.04
             python-version: '3.9'
-          - os: ubuntu-24.04
-            python-version: '3.7'
-          - os: ubuntu-24.04
-            python-version: '3.7'
           - os: ubuntu-24.04
             gdal-version: '3.6'
           - os: ubuntu-24.04
diff --git a/Dockerfile b/Dockerfile
index a73a8a6..c89f2c3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,7 @@
 ARG GDAL_VERSION=3.9.1
 
 FROM ghcr.io/osgeo/gdal:alpine-normal-${GDAL_VERSION} AS base
+# docker run ghcr.io/osgeo/gdal:alpine-normal-3.9.1 python3 --version > Python 3.11.9
 
 LABEL maintainer="Roel van den Berg <roel.vandenberg@kadaster.nl>"
 
diff --git a/pyproject.toml b/pyproject.toml
index 7e34b0d..f81d430 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,7 +10,6 @@ license = {text = "MIT"}
 classifiers = [
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3 :: Only",
-    "Programming Language :: Python :: 3.7",
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
@@ -23,6 +22,7 @@ dependencies = [
     "click-log >=0.3",
     "gdal >=3.4",
     "minio",
+    "pydantic >= 2.9",
     "pyyaml",
 ]
 requires-python = ">=3.6"