diff --git a/.gitignore b/.gitignore
index 6789326..4259d31 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 /SALib-1.3.7.tar.gz
 *.src.rpm
 /SALib-1.3.8.tar.gz
+/SALib-1.3.11.tar.gz
diff --git a/python-SALib.spec b/python-SALib.spec
index b22890a..ab60edc 100644
--- a/python-SALib.spec
+++ b/python-SALib.spec
@@ -24,17 +24,13 @@ Methods included:
 - Fractional Factorial Sensitivity Analysis (Saltelli et al. 2008)}
 
 Name:           python-%{srcname}
-Version:        1.3.8
-Release:        2%{?dist}
+Version:        1.3.11
+Release:        1%{?dist}
 Summary:        Sensitivity Analysis Library
 
 License:        MIT
 URL:            http://salib.github.io/SALib/
 Source0:        %pypi_source
-# Add patch for numpy 1.18 support
-# https://github.com/SALib/SALib/pull/280
-SOURCE1:        https://raw.githubusercontent.com/bsteubing/SALib/numpy_float_to_integer_issue/src/SALib/analyze/delta.py
-
 
 BuildArch:      noarch
 
@@ -98,14 +94,11 @@ find . -type f -name "*.py" -exec sed -i '/^#![  ]*\/usr\/bin\/env.*$/ d' {} 2>/
 sed -i 's/\r$//' LICENSE.txt
 sed -i 's/\r$//' src/SALib/analyze/rbd_fast.py
 
-# Copy over fixed version of delta.py
-cp -v -p %{SOURCE1} ./src/SALib/analyze/delta.py
-
 %build
 %py3_build
 
-make -C docs SPHINXBUILD=sphinx-build-3 html
-rm -rf docs/_build/html/{.doctrees,.buildinfo} -vf
+sphinx-build-%{python3_version} docs html-docs
+rm -rf html-docs/{.doctrees,.buildinfo} -vf
 
 %install
 %py3_install
@@ -128,9 +121,12 @@ PYTHONPATH=$RPM_BUILD_ROOT%{python3_sitelib} pytest-%{python3_version}
 
 %files doc
 %license LICENSE.txt
-%doc docs/_build/html
+%doc html-docs
 
 %changelog
+* Wed Apr 22 2020 Ankur Sinha <ankursinha AT fedoraproject DOT org> - 1.3.11-1
+- Update to new release
+
 * Mon Mar 16 2020 Ankur Sinha <ankursinha AT fedoraproject DOT org> - 1.3.8-2
 - Add patch to fix for python 3.9
 - https://bugzilla.redhat.com/show_bug.cgi?id=1794093
diff --git a/sources b/sources
index 84fd315..3dc5da5 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (SALib-1.3.8.tar.gz) = 053d21362db56748ff5fe2faa69d02e3c5d7b0297e3911c3dee48384187bb448f25029260cdea52651c3a12d6ff0d2d81a411069862f888ac964fb70135c3710
+SHA512 (SALib-1.3.11.tar.gz) = 9a09b3163dd765b86636977a1d1cb13d02c743ef85b31fd363648aa75dfa3d6272731bb2209fc0913b972f619e908cc4b6124915c670c0fff693e89864a24f51