diff --git a/README.md b/README.md
index 28f9f06e..41f43c16 100644
--- a/README.md
+++ b/README.md
@@ -1156,6 +1156,11 @@ Example Usage:
 3.x Changelog
 -------------
 
+3.9.1 - 2 March 2021
+
+   * Bugfix: More log_root fun (#543)
+   * Bugfix: Use GHA for all the CIs
+
 3.9.0 - 24 February 2021
 
     * Bugfix: Try to make a log root of "log" more sensible (#540)
diff --git a/src/lager.app.src b/src/lager.app.src
index 94c04f0e..80eb37a8 100644
--- a/src/lager.app.src
+++ b/src/lager.app.src
@@ -3,7 +3,7 @@
 {application, lager,
  [
   {description, "Erlang logging framework"},
-  {vsn, "3.9.0"},
+  {vsn, "3.9.1"},
   {modules, []},
   {applications, [
                   kernel,