diff --git a/python37.spec b/python37.spec
index 29e306e..45a9382 100644
--- a/python37.spec
+++ b/python37.spec
@@ -13,12 +13,12 @@ URL: https://www.python.org/
 
 
 # Third beta
-%global prerel b5
+%global prerel rc1
 
 #  WARNING  When rebasing to a new Python version,
 #           remember to update the python3-docs package as well
 Version: %{pybasever}.0
-Release: 0.19.%{?prerel}%{?dist}
+Release: 0.20.%{?prerel}%{?dist}
 License: Python
 
 
@@ -1557,6 +1557,9 @@ CheckPython optimized
 # ======================================================
 
 %changelog
+* Tue Jun 12 2018 Miro Hrončok <mhroncok@redhat.com> - 3.7.0-0.20.rc1
+- Update to 3.7.0rc1
+
 * Thu May 31 2018 Miro Hrončok <mhroncok@redhat.com> - 3.7.0-0.19.b5
 - Update to 3.7.0b5
 
diff --git a/sources b/sources
index 67aabf2..8ed12d6 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (Python-3.7.0b5.tar.xz) = 1623df6a250982b070788f47a5a6cc6c2fd6d8e6396cf6926b771abc35e4291bd4532f03e070f8010f17075d5bdb748ce8056ef9e1a2c54e518d58b75481b692
+SHA512 (Python-3.7.0rc1.tar.xz) = cc4c29dfce7e2fca6328f802bd435e1ffc4acecd70d83d602a894bf076bdb95fb4635c891043ba1c3b6438d23ba7f76545cfe323ec0b57029b5c0f639fc6d2c5