diff --git a/CHANGELOG.md b/CHANGELOG.md
index e78b524..75c57a2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,10 +1,10 @@
 # Changelog
 
-Babashka [http-client](https://github.com/babashka/http-client): HTTP client for Clojure and babashka built on java.net.http 
+Babashka [http-client](https://github.com/babashka/http-client): HTTP client for Clojure and babashka built on java.net.http
 
-## Unreleased
+## 0.4.20
 
-- [#60](https://github.com/babashka/http-client/issues/60): Minimum Clojure version is now 1.10
+- [#60](https://github.com/babashka/http-client/issues/60): Minimum Clojure version is now 1.10 instead of 1.11
 ([@lread](https://github.com/lread))
 
 ## 0.4.19 (2024-04-24)
diff --git a/deps.edn b/deps.edn
index f6b6222..b5b3ec7 100644
--- a/deps.edn
+++ b/deps.edn
@@ -1,16 +1,17 @@
 {:deps {}
  :aliases
  {:neil {:project {:name org.babashka/http-client
-                   :version "0.4.19"}}
+                   :version "0.4.20"}}
   :clj-1.10 {:extra-deps {org.clojure/clojure {:mvn/version "1.10.3"}}}
   :clj-1.11 {:extra-deps {org.clojure/clojure {:mvn/version "1.11.4"}}}
   :clj-1.12 {:extra-deps {org.clojure/clojure {:mvn/version "1.12.0-rc1"}}}
 
   :repl {:extra-deps {cheshire/cheshire {:mvn/version "5.11.0"}
                       io.github.borkdude/deflet {:mvn/version "0.1.0"}
-                      babashka/fs {:mvn/version "0.2.16"}}}
+                      babashka/fs {:mvn/version "0.2.16"}}
+         :extra-paths ["dev"]}
   :test ;; added by neil
-  {:extra-paths ["test"]
+  {:extra-paths ["dev" "test"]
    :extra-deps {cheshire/cheshire {:mvn/version "5.11.0"}
                 io.github.cognitect-labs/test-runner
                 {:git/tag "v0.5.0" :git/sha "b3fd0d2"}
diff --git a/dev/user.clj b/dev/user.clj
new file mode 100644
index 0000000..f2a2755
--- /dev/null
+++ b/dev/user.clj
@@ -0,0 +1,2 @@
+(println "Toggling warn on reflection to true...")
+(alter-var-root #'*warn-on-reflection* (constantly true))
diff --git a/test/babashka/http_client_test.clj b/test/babashka/http_client_test.clj
index 3a498e2..8b88b6d 100644
--- a/test/babashka/http_client_test.clj
+++ b/test/babashka/http_client_test.clj
@@ -15,6 +15,8 @@
    [java.net.http HttpRequest$BodyPublishers]
    [javax.net.ssl SSLContext]))
 
+(set! *warn-on-reflection* false) ;; only in this test namespace
+
 (def !server (atom nil))
 
 (defn run-server []