diff --git a/pyproject.toml b/pyproject.toml
index a9adba5..8bf2b70 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,7 +24,7 @@ dependencies = [
     "scipy",
     "h5py",
     "schwimmbad>=0.4",
-    "pymc>=5",
+    "pymc>=5.10.0",
     "pymc_ext>=1.0.1",
     "exoplanet-core[pymc]>=0.3.0",
     "tables",