diff --git a/pyproject.toml b/pyproject.toml
index eddc1d771..b7104b575 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,11 +1,11 @@
 [build-system]
 requires = [
-  "scikit-build-core[pyproject]",
-  "swig",
-  "numpy==1.19.2; python_version == '3.8'",
-  "numpy==1.19.5; python_version == '3.9'",
-  "numpy==1.21.6; python_version == '3.10'",
-  "numpy==1.23.5; python_version == '3.11'",
+    "scikit-build-core[pyproject]",
+    "swig",
+    "numpy==1.19.2; python_version == '3.8'",
+    "numpy==1.19.5; python_version == '3.9'",
+    "numpy==1.21.6; python_version == '3.10'",
+    "numpy==1.23.5; python_version == '3.11'",
 ]
 build-backend = "scikit_build_core.build"
 
@@ -22,9 +22,7 @@ description = "XTGeo is a Python library for 3D grids, surfaces, wells, etc"
 readme = "README.md"
 requires-python = ">=3.8"
 license = { text = "LGPL-3.0" }
-authors = [
-    { name = "Equinor", email = "jriv@equinor.com" },
-]
+authors = [{ name = "Equinor", email = "jriv@equinor.com" }]
 keywords = ["grids", "surfaces", "wells", "cubes"]
 classifiers = [
     "Development Status :: 5 - Production/Stable",
@@ -57,7 +55,8 @@ dependencies = [
     "scipy>=1.5",
     "segyio>1.8.0",
     "shapely>=1.6.2",
-    "tables;platform_system != 'Darwin'",  # TODO: update when fixed for mac
+    "tables<3.9;platform_system != 'Darwin' and python_version == 3.8", # TODO: mac...
+    "tables;platform_system != 'Darwin' and python_version > 3.8",      # TODO: mac...
     "typing-extensions",
 ]