diff --git a/pyproject.toml b/pyproject.toml
index cd7859bb..baa388b0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,11 +13,9 @@ classifiers = [
 ]
 dynamic = ["version"]
 dependencies = [
-    "matplotlib",
     "numpy",
     "scipy >= 1.9.0",
-    "scikit-learn",
-    "tables_io >= 0.7.7",
+    "tables-io >= 0.8.0",
     "deprecated",
 ]
 
@@ -45,7 +43,18 @@ build-backend = "setuptools.build_meta"
 write_to = "src/qp/_version.py"
 
 [project.optional-dependencies]
+full = [
+    "tables-io[full]",
+]
+all = [
+    "tables-io[full]",
+    "matplotlib",
+    "scikit-learn",
+]
 dev = [
+    "tables-io[full]",
+    "matplotlib",
+    "scikit-learn",
     "pytest",
     "pytest-cov",
     "packaging",
@@ -55,7 +64,6 @@ dev = [
     "kiwisolver",
     "joblib",
     "threadpoolctl",
-    "h5py",
     "pylint",
     "mpi4py",
     "coverage",
diff --git a/requirements.txt b/requirements.txt
index a990665e..25bd9b93 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,5 +3,5 @@ numpy
 scipy>=1.9.0
 scikit-learn
 setuptools_scm
-tables_io>=0.7.7
+tables-io[full]
 deprecated
diff --git a/src/qp/__init__.py b/src/qp/__init__.py
index 13d5bd7e..26e18b10 100644
--- a/src/qp/__init__.py
+++ b/src/qp/__init__.py
@@ -13,6 +13,7 @@
 from .packed_interp_pdf import *
 from .ensemble import Ensemble
 from .factory import instance, add_class, create, read, convert, concatenate, iterator, data_length, from_tables
+from .lazy_modules import *
 
 from . import utils
 
diff --git a/src/qp/conversion_funcs.py b/src/qp/conversion_funcs.py
index c1c64253..39d68fb4 100644
--- a/src/qp/conversion_funcs.py
+++ b/src/qp/conversion_funcs.py
@@ -4,11 +4,11 @@
 """
 import numpy as np
 
-from sklearn import mixture
 from scipy import integrate as sciint
 from scipy import interpolate as sciinterp
 
 from .sparse_rep import indices2shapes, build_sparse_representation, decode_sparse_indices
+from .lazy_modules import mixture
 
 def extract_vals_at_x(in_dist, **kwargs):
     """Convert using a set of x and y values.
diff --git a/src/qp/factory.py b/src/qp/factory.py
index e8e0b91b..d786a5ae 100644
--- a/src/qp/factory.py
+++ b/src/qp/factory.py
@@ -122,10 +122,10 @@ def create(self, class_name, data, method=None):
 
     def from_tables(self, tables):
         """Build this ensemble from a tables
-        
+
         Parameters
         ----------
-        tables: `dict` 
+        tables: `dict`
 
         Notes
         -----
@@ -149,7 +149,7 @@ def from_tables(self, tables):
         if reader_convert is not None: #pragma: no cover
             data = reader_convert(data)
         return Ensemble(ctor_func, data=data, ancil=ancil_table)
-       
+
     def read(self, filename):
         """Read this ensemble from a file
 
diff --git a/src/qp/lazy_modules.py b/src/qp/lazy_modules.py
new file mode 100644
index 00000000..057a91e9
--- /dev/null
+++ b/src/qp/lazy_modules.py
@@ -0,0 +1,7 @@
+""" Lazy loading modules """
+
+from tables_io.lazy_modules import lazyImport
+
+mpl = lazyImport('matplotlib')
+plt = lazyImport('matplotlib.pyplot')
+mixture = lazyImport('sklearn.mixture')
diff --git a/src/qp/plotting.py b/src/qp/plotting.py
index c97d720f..fb7bde69 100644
--- a/src/qp/plotting.py
+++ b/src/qp/plotting.py
@@ -2,8 +2,7 @@
 
 import numpy as np
 
-import matplotlib as mpl
-import matplotlib.pyplot as plt
+from .lazy_modules import mpl, plt
 
 
 def init_matplotlib():