diff --git a/racket-8.8-src.tgz b/racket-8.8-src.tgz
deleted file mode 100644
index a66047f..0000000
--- a/racket-8.8-src.tgz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:398422e2b42373e14e4e0f96da3d95cb5744247ba3f73ea99815fb693c2714ab
-size 33786055
diff --git a/racket-8.9-src.tgz b/racket-8.9-src.tgz
new file mode 100644
index 0000000..8e12409
--- /dev/null
+++ b/racket-8.9-src.tgz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3ae225e84e119f4cd1a47f1b16133568fc7d35c290c505495566d9dccefc5224
+size 33879141
diff --git a/racket.changes b/racket.changes
index c26260f..73294bc 100644
--- a/racket.changes
+++ b/racket.changes
@@ -1,3 +1,43 @@
+-------------------------------------------------------------------
+Sun May 13 15:17:43 UTC 2023 - Fred Fu <moonsolo@gmail.com>
+- Update to 8.9:
+ * The HtDP student languages come with checked signatures. Programmers can
+   express signatures in a formal notation, and these signatures are checked at
+   run-time (in a performance-neutral manner). The addition of this formal
+   language associates meaning with several names that had no meaning before. —
+   This feature is experimental, and we may amend or retract it later. (cf. 2
+   Beginning Student with List Abbreviations 27)
+
+ * Switching into and out of dark mode is handled better on Mac OS and Linux.
+
+ * Racket uses Unicode 15.0 for character and string operations.
+
+ * The racket/hash-code library provides support for combining hash
+   codes. (cf. 4.1 Equality 5)
+
+ * A language module can have a configure-expand submodule that is dynamically
+   required to configure a parameterization before expansion of another
+   module. (cf. 18.1 Running Racket or GRacket 1)
+
+ * stream-cons supports multiple values. (cf. 4.16.2 Streams 5)
+
+ * unit/c subcontracts may depend on bindings from any imported or exported
+   signature. Additionally, bindings’ contracts are enforced within
+   subcontracts, and violations blame the contract itself (like ->i). (cf. 7.9
+   Unit Contracts 2)
+
+ * racket/class provides the dynamic-instantiate procedure for instantiating a
+   class with a dynamic list of by-name initialization arguments. (cf. 6.3
+   Creating Objects 2)
+
+ * TCP output block buffering implies TCP_NODELAY. (cf. 15.3.1 TCP 3)
+
+ * Submodules and Check Syntax require arrows work better together.
+ 
+ * Typed Racket's shallow check generation is improved.
+
+ * Many other improvements and bug fixes are included!
+
 -------------------------------------------------------------------
 Wed Feb 15 21:17:43 UTC 2023 - Fred Fu <moonsolo@gmail.com>
 - Update to 8.8:
diff --git a/racket.spec b/racket.spec
index 68cd82d..766d3bf 100644
--- a/racket.spec
+++ b/racket.spec
@@ -18,7 +18,7 @@
 
 
 Name:           racket
-Version:        8.8
+Version:        8.9
 Release:        0
 Summary:        Scheme implementation with teaching tools
 License:        Apache-2.0 OR MIT