diff --git a/CHANGELOG.md b/CHANGELOG.md
index 234d5f3d..2ef4292b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,10 @@ We use [Break Versioning][breakver]. The version numbers follow a `<major>.<mino
 
 [breakver]: https://github.com/ptaoussanis/encore/blob/master/BREAK-VERSIONING.md
 
+## Unreleased
+
+* OpenAPI 3 parameter descriptions get populated from malli/spec/schema descriptions. [#612](https://github.com/metosin/reitit/issues/612)
+
 ## 0.7.3-alpha3 (2023-05-05)
 
 * Compile `reitit.Trie` with Java 1.8 target for compatibility
diff --git a/project.clj b/project.clj
index 32dc7a58..a3328b09 100644
--- a/project.clj
+++ b/project.clj
@@ -87,7 +87,7 @@
                                   [org.clojure/clojurescript "1.10.773"]
 
                                   ;; modules dependencies
-                                  [metosin/schema-tools "0.13.0"]
+                                  [metosin/schema-tools "0.13.1"]
                                   [metosin/spec-tools "0.10.5"]
                                   [metosin/muuntaja "0.6.8"]
                                   [metosin/sieppari "0.0.0-alpha13"]
diff --git a/test/cljc/reitit/openapi_test.clj b/test/cljc/reitit/openapi_test.clj
index 165cc91d..a2d4c284 100644
--- a/test/cljc/reitit/openapi_test.clj
+++ b/test/cljc/reitit/openapi_test.clj
@@ -366,7 +366,8 @@
 (deftest all-parameter-types-test
   (doseq [[coercion ->schema]
           [[#'malli/coercion (fn [nom] [:map [nom [:string {:description (str "description " nom)}]]])]
-           [#'schema/coercion (fn [nom] {nom s/Str})]
+           [#'schema/coercion (fn [nom] {nom (schema-tools.core/schema s/Str
+                                                                       {:description (str "description " nom)})})]
            [#'spec/coercion (fn [nom] {nom (st/spec {:spec string?
                                                      :description (str "description " nom)})})]]]
     (testing coercion
@@ -396,30 +397,22 @@
           (is (match? [{:in "query"
                         :name "q"
                         :required true
-                        :description (if (not= #'schema/coercion coercion)
-                                       "description :q"
-                                       "")
+                        :description "description :q"
                         :schema {:type "string"}}
                        {:in "header"
                         :name "h"
                         :required true
-                        :description (if (not= #'schema/coercion coercion)
-                                       "description :h"
-                                       "")
+                        :description "description :h"
                         :schema {:type "string"}}
                        {:in "cookie"
                         :name "c"
                         :required true
-                        :description (if (not= #'schema/coercion coercion)
-                                       "description :c"
-                                       "")
+                        :description "description :c"
                         :schema {:type "string"}}
                        {:in "path"
                         :name "p"
                         :required true
-                        :description (if (not= #'schema/coercion coercion)
-                                       "description :p"
-                                       "")
+                        :description "description :p"
                         :schema {:type "string"}}]
                  (-> spec
                      (get-in [:paths "/parameters" :post :parameters])