diff --git a/.gitignore b/.gitignore
index b9edc14..06d98d4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,3 +20,4 @@
 /spyder-kernels-2.3.3.tar.gz
 /spyder-kernels-2.4.4.tar.gz
 /spyder-kernels-3.0.0b2.tar.gz
+/spyder-kernels-3.0.0b4.tar.gz
diff --git a/python-spyder-kernels.spec b/python-spyder-kernels.spec
index c329278..165cbc8 100644
--- a/python-spyder-kernels.spec
+++ b/python-spyder-kernels.spec
@@ -4,7 +4,7 @@
 %global forgeurl https://github.com/spyder-ide/spyder-kernels
 
 Name:           python-%{pypi_name}
-Version:        3.0.0~b2
+Version:        3.0.0~b4
 Release:        %autorelease
 Epoch:          1
 Summary:        Jupyter kernels for Spyder's console
diff --git a/sources b/sources
index d376fa9..b564b50 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (spyder-kernels-3.0.0b2.tar.gz) = 401a454dc2a3ca33653c55360e14c110fd9430c4dec376765290e0d4fc04a2117f3875a03ce44eae0a0839c81afd40794cb4e36898922da42a950880301564c4
+SHA512 (spyder-kernels-3.0.0b4.tar.gz) = 6c3579024916e8b17aa021b5a252587cd0ac5fb1c8b5aeabaa6c84883c02d2d53dc1b728a97c1fdf23ba7e69a6af26b4b8ba792c7e6bbeb27a783f6fc6086e1a