diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 3ed6698..c32355f 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -28,6 +28,7 @@ jobs:
         run: |
           sudo apt-get update
           sudo apt-get -y install gdal-bin libgdal-dev
+          ogrinfo --version
           python -m pip install --upgrade pip
           pip install --verbose .[dev]
       - name: Lint with flake8
diff --git a/pyproject.toml b/pyproject.toml
index f2103d8..ebf1b17 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,7 +13,7 @@ classifiers = [
     "License :: OSI Approved :: MIT License",
     "Operating System :: OS Independent",
 ]
-dependencies = ["geopandas>=0.13", "shapely>=2.0", "pyproj", "GDAL"]
+dependencies = ["geopandas>=0.13", "shapely>=2.0", "pyproj", "GDAL==3.4.1"]
 
 [project.urls]
 "Homepage" = "https://github.com/nismod/irv-datapkg"