diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1779b0af..ed540fab 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,7 @@ We use [Break Versioning][breakver]. The version numbers follow a `<major>.<mino
 * Handlers can be vars [#585](https://github.com/metosin/reitit/pull/585)
 * Fetch OpenAPI content types from Muuntaja [#636](https://github.com/metosin/reitit/issues/636)
 * **BREAKING** OpenAPI support is now clj only
+* Fix swagger generation when unsupported coercions are present [#671](https://github.com/metosin/reitit/pull/671)
 * Updated dependencies:
 
 ```clojure
diff --git a/README.md b/README.md
index 5a4415ac..a7124f5b 100644
--- a/README.md
+++ b/README.md
@@ -57,6 +57,8 @@ All main modules bundled:
 
 Optionally, the parts can be required separately.
 
+Reitit requires Clojure 1.11.
+
 ## Quick start
 
 ```clj
diff --git a/modules/reitit-swagger/src/reitit/swagger.cljc b/modules/reitit-swagger/src/reitit/swagger.cljc
index fffba6eb..039f53c5 100644
--- a/modules/reitit-swagger/src/reitit/swagger.cljc
+++ b/modules/reitit-swagger/src/reitit/swagger.cljc
@@ -68,11 +68,13 @@
 (defn- swagger-path [path opts]
   (-> path (trie/normalize opts) (str/replace #"\{\*" "{")))
 
-(defn -warn-unsupported-coercions [{:keys [request responses] :as _data}]
+(defn -remove-unsupported-coercions [{:keys [request responses] :as data}]
   (when request
     (println "WARNING [reitit.coercion]: swagger apidocs don't support :request coercion"))
   (when (some :content (vals responses))
-    (println "WARNING [reitit.coercion]: swagger apidocs don't support :responses :content coercion")))
+    (println "WARNING [reitit.coercion]: swagger apidocs don't support :responses :content coercion"))
+  (cond-> (dissoc data :request)
+    responses (assoc :responses (update-vals responses #(dissoc % :content)))))
 
 (defn -get-swagger-apidocs [coercion data]
   (let [swagger-parameter {:query :query
@@ -80,10 +82,10 @@
                            :form :formData
                            :header :header
                            :path :path
-                           :multipart :formData}]
-    (-warn-unsupported-coercions data)
+                           :multipart :formData}
+        cleaned (-remove-unsupported-coercions data)]
     (->> (update
-          data
+          cleaned
           :parameters
           (fn [parameters]
             (->> parameters