diff --git a/spyder_kernels/_version.py b/spyder_kernels/_version.py
index 1d3a5157..2d20379b 100644
--- a/spyder_kernels/_version.py
+++ b/spyder_kernels/_version.py
@@ -8,5 +8,5 @@
 
 """Version File."""
 
-VERSION_INFO = (4, 0, 0, 'dev0')
+VERSION_INFO = (3, 1, 0, 'dev0')
 __version__ = '.'.join(map(str, VERSION_INFO))