diff --git a/CHANGELOG b/CHANGELOG
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,9 @@
+reactive-banana-automation (0.5.2) upstream; urgency=medium
+
+  * Support stm-2.5.
+
+ -- Joey Hess <id@joeyh.name>  Sun, 25 Aug 2019 14:11:26 -0400
+
 reactive-banana-automation (0.5.1) upstream; urgency=medium
 
   * Added Eq and Ord instances for PowerChange.
diff --git a/reactive-banana-automation.cabal b/reactive-banana-automation.cabal
--- a/reactive-banana-automation.cabal
+++ b/reactive-banana-automation.cabal
@@ -1,5 +1,5 @@
 Name: reactive-banana-automation
-Version: 0.5.1
+Version: 0.5.2
 Cabal-Version: >= 1.8
 License: AGPL-3
 Maintainer: Joey Hess <id@joeyh.name>
@@ -32,7 +32,7 @@
     base (>= 4.6 && < 5.0),
     reactive-banana (>= 1.1 && < 1.3),
     time (>= 1.6 && < 1.9),
-    stm (>= 2.4 && < 2.5),
+    stm (>= 2.4 && < 2.6),
     transformers (>= 0.5 && < 0.6)
   Exposed-Modules:
     Reactive.Banana.Automation