diff --git a/examples/http-swagger/src/example/server.clj b/examples/http-swagger/src/example/server.clj
index 7b0b381f..b23f7bf8 100644
--- a/examples/http-swagger/src/example/server.clj
+++ b/examples/http-swagger/src/example/server.clj
@@ -21,6 +21,7 @@
             [clojure.java.io :as io]
             [clojure.spec.alpha :as s]
             [spec-tools.core :as st]
+            [sieppari.async.manifold]
             [manifold.deferred :as d]))
 
 (s/def ::x int?)
diff --git a/examples/http/src/example/server.clj b/examples/http/src/example/server.clj
index adc6a90d..021e11ff 100644
--- a/examples/http/src/example/server.clj
+++ b/examples/http/src/example/server.clj
@@ -2,6 +2,8 @@
   (:require [reitit.http :as http]
             [reitit.ring :as ring]
             [reitit.interceptor.sieppari]
+            [sieppari.async.core-async] ;; needed for core.async
+            [sieppari.async.manifold]   ;; needed for manifold
             [ring.adapter.jetty :as jetty]
             [muuntaja.interceptor]
             [clojure.core.async :as a]