diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7012a93a..28905665 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,18 @@
+1.20.0 - 2019-10-28
+===================
+
+### Features
+- Allow building newer versions of `ruby`.
+    - #1193 issue by @choffee.
+    - #1195 PR by @choffee.
+- Bump versions reported in `pre-commit sample-config`.
+    - #1197 PR by @asottile.
+
+### Fixes
+- Fix rare race condition with multiple concurrent first-time runs.
+    - #1192 issue by @raholler.
+    - #1196 PR by @asottile.
+
 1.19.0 - 2019-10-26
 ===================
 
diff --git a/setup.cfg b/setup.cfg
index cf8e3420..f9ae6e37 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = pre_commit
-version = 1.19.0
+version = 1.20.0
 description = A framework for managing and maintaining multi-language pre-commit hooks.
 long_description = file: README.md
 long_description_content_type = text/markdown