diff --git a/CHANGELOG.md b/CHANGELOG.md
index cf2ae31..9a42f13 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,9 @@
 
 Only accretive/fixative changes will be made from now on.
 
+* 1.3.next in progress
+  * Update testing deps.
+
 * 1.3.939 -- 2024-05-17
   * Fix [#280](https://github.com/seancorfield/next-jdbc/issues/280) by allowing `-` as well as `_` in `nav` foreign key names.
   * Address [#279](https://github.com/seancorfield/next-jdbc/issues/279) by adding the missing documentation.
diff --git a/deps.edn b/deps.edn
index ec75b59..aafc1d1 100644
--- a/deps.edn
+++ b/deps.edn
@@ -13,7 +13,7 @@
   ;; versions to test against:
   :1.10 {:override-deps {org.clojure/clojure {:mvn/version "1.10.3"}}}
   :1.11 {:override-deps {org.clojure/clojure {:mvn/version "1.11.3"}}}
-  :1.12 {:override-deps {org.clojure/clojure {:mvn/version "1.12.0-alpha11"}}}
+  :1.12 {:override-deps {org.clojure/clojure {:mvn/version "1.12.0-alpha12"}}}
 
   ;; running tests/checks of various kinds:
   :test {:extra-paths ["test"] ; can also run clojure -X:test