diff --git a/.github/workflows/test-and-publish.yml b/.github/workflows/test-and-publish.yml
index 67eeb7c..8be9735 100644
--- a/.github/workflows/test-and-publish.yml
+++ b/.github/workflows/test-and-publish.yml
@@ -10,22 +10,22 @@ jobs:
     strategy:
       matrix:
         distribution: [ 'zulu' ]
-        java: [ '11', '17' ]
+        java: [ '11', '17', '21' ]
 
     name: Java ${{ matrix.Java }} (${{ matrix.distribution }})
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Prepare java
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@v4
         with:
           distribution: ${{ matrix.distribution }}
           java-version: ${{ matrix.java }}
 
       - name: Install clojure tools
-        uses: DeLaGuardo/setup-clojure@9.5
+        uses: DeLaGuardo/setup-clojure@12.5
         with:
           lein: 2.9.10
 
diff --git a/README.md b/README.md
index 5ab7530..d1045fc 100644
--- a/README.md
+++ b/README.md
@@ -2,8 +2,6 @@
 
 [![Clojars Project](https://img.shields.io/clojars/v/hato.svg)](https://clojars.org/hato)
 
-[![Clojure CI](https://github.com/gnarroway/hato/actions/workflows/build-and-publish.yml/badge.svg)](https://github.com/gnarroway/hato/actions/workflows/build-and-publish.yml)
-
 An HTTP client for Clojure, wrapping JDK 11's [HttpClient](https://openjdk.java.net/groups/net/httpclient/intro.html).
 
 It supports both HTTP/1.1 and HTTP/2, with synchronous and asynchronous execution modes as well as websockets.
diff --git a/project.clj b/project.clj
index 1cb5f2c..1df6dfd 100644
--- a/project.clj
+++ b/project.clj
@@ -1,5 +1,5 @@
 
-(defproject hato "1.0.0"
+(defproject hato "1.1.0-SNAPSHOT"
   :description "An HTTP client for Clojure, wrapping JDK 11's HttpClient."
   :url "https://github.com/gnarroway/hato"
   :license {:name         "The MIT License"