diff --git a/h/h5py/h5py-2.9.0-Py-3.6.eb b/h/h5py/h5py-2.9.0-Py-3.6.eb
index d2f065e8..dba8816b 100644
--- a/h/h5py/h5py-2.9.0-Py-3.6.eb
+++ b/h/h5py/h5py-2.9.0-Py-3.6.eb
@@ -15,7 +15,7 @@ sources = [SOURCE_TAR_GZ]
 
 dependencies = [
     ('HDF5', '1.10.4', '-parallel', ('gompi', '2017c')),
-    ('numpy', '1.15.4'),
+    ('numpy', '1.16.3'),
     ('mpi4py', '3.0.1'),  # required for MPI support
     ('six', '1.11.0'),
 ]
diff --git a/m/matplotlib/matplotlib-3.1.0-Py-3.6.eb b/m/matplotlib/matplotlib-3.1.0-Py-3.6.eb
new file mode 100644
index 00000000..b59533ae
--- /dev/null
+++ b/m/matplotlib/matplotlib-3.1.0-Py-3.6.eb
@@ -0,0 +1,29 @@
+# IT4Innovations 2019
+
+easyblock = "PythonPackage"
+name = 'matplotlib'
+version = '3.1.0'
+
+homepage = 'http://matplotlib.org'
+description = """Matplotlib is a python 2D plotting library which produces publication quality figures in a variety of
+ hardcopy formats and interactive environments across platforms. matplotlib can be used in python scripts, the python
+ and ipython shell, web application servers, and six graphical user interface toolkits."""
+
+toolchain = {'name': 'Py', 'version': '3.6'}
+
+source_urls = ['https://github.com/matplotlib/matplotlib/archive/']
+sources = ['v%(version)s.tar.gz']
+
+dependencies = [
+    ('freetype', '2.9.1', '-libpng-1.6.34', True),
+    ('libpng', '1.6.34', '', True),
+    ('python-dateutil', '2.6.1'),
+    ('numpy', '1.16.3'),
+    ('pyparsing', '2.2.0'),
+    ('six', '1.11.0'),
+]
+
+sanity_check_paths = {'files': [], 'dirs': [
+    'lib/python3.6/site-packages/%(name)s-%(version)s-py3.6-linux-x86_64.egg/%(name)s'], }
+
+moduleclass = 'python'
diff --git a/p/phonopy/phonopy-2.1.3-Py-3.6.eb b/p/phonopy/phonopy-2.1.3-Py-3.6.eb
index fb151b94..35cb1f64 100644
--- a/p/phonopy/phonopy-2.1.3-Py-3.6.eb
+++ b/p/phonopy/phonopy-2.1.3-Py-3.6.eb
@@ -14,7 +14,7 @@ source_urls = [PYPI_SOURCE]
 sources = [SOURCE_TAR_GZ]
 
 dependencies = [
-    ('matplotlib', '3.0.2'),
+    ('matplotlib', '3.1.0'),
     ('lxml', '4.3.0'),
     ('PyYAML', '3.13'),
     ('numpy', '1.16.3'),
@@ -22,4 +22,10 @@ dependencies = [
     ('scipy', '1.3.0')
 ]
 
+sanity_check_paths = {
+    'files': [],
+    'dirs': ['lib/python3.6/site-packages/%(name)s-%(version)s-py3.6-linux-x86_64.egg'],
+}
+
+
 moduleclass = 'python'