diff --git a/bindings/python-cffi/version b/bindings/python-cffi/version
index 62d9e333..811b2d53 100644
--- a/bindings/python-cffi/version
+++ b/bindings/python-cffi/version
@@ -1 +1 @@
-0.31~rc0
+0.31~rc1
diff --git a/bindings/python/notmuch/version.py b/bindings/python/notmuch/version.py
index a09a8b72..05c7fa7f 100644
--- a/bindings/python/notmuch/version.py
+++ b/bindings/python/notmuch/version.py
@@ -1,3 +1,3 @@
 # this file should be kept in sync with ../../../version
-__VERSION__ = '0.31~rc0'
+__VERSION__ = '0.31~rc1'
 SOVERSION = '5'
diff --git a/version b/version
index 62d9e333..811b2d53 100644
--- a/version
+++ b/version
@@ -1 +1 @@
-0.31~rc0
+0.31~rc1