diff --git a/profiles/package.mask b/profiles/package.mask
new file mode 100644
index 0000000..135c5b6
--- /dev/null
+++ b/profiles/package.mask
@@ -0,0 +1,36 @@
+####################################################################
+#
+# When you add an entry to the top of this file, add your name, the date, and
+# an explanation of why something is getting masked. Please be extremely
+# careful not to commit atoms that are not valid, as it can cause large-scale
+# breakage, especially if it ends up in the daily snapshot.
+#
+## Example:
+##
+## # Dev E. Loper <developer@gentoo.org> (28 Jun 2012)
+## # Masking  these versions until we can get the
+## # v4l stuff to work properly again
+## =media-video/mplayer-0.90_pre5
+## =media-video/mplayer-0.90_pre5-r1
+#
+# - Best last rites (removal) practices -
+# Include the following info:
+# a) reason for masking
+# b) bug # for the removal (and yes you should have one)
+# c) date of removal (either the date or "in x days")
+# d) the word "removal"
+#
+## Example:
+##
+## Dev E. Loper <developer@gentoo.org> (25 Jan 2012)
+## Masked for removal in 30 days.  Doesn't work
+## with new libfoo. Upstream dead, gtk-1, smells
+## funny. (bug #987654)
+## app-misc/some-package
+
+#--- END OF EXAMPLES ---
+
+# Horea Christian <chr@chymera.eu> (26 Jun 2018)
+# Issues with new dependencies:
+# https://github.com/nipy/nipype/issues/3196
+=sci-libs/nipype-1.4.2