diff --git a/http-generator-core/src/main/java/io/avaje/http/generator/core/openapi/OpenAPISerializer.java b/http-generator-core/src/main/java/io/avaje/http/generator/core/openapi/OpenAPISerializer.java
index 942a05d41..7f57bc00a 100644
--- a/http-generator-core/src/main/java/io/avaje/http/generator/core/openapi/OpenAPISerializer.java
+++ b/http-generator-core/src/main/java/io/avaje/http/generator/core/openapi/OpenAPISerializer.java
@@ -66,6 +66,7 @@ static String serialize(Object obj) throws IllegalAccessException {
 
           // skip JsonIgnored fields
           if ("BIND_TYPE_AND_TYPES".equals(field.getName())
+              || "BINARY_STRING_CONVERSION_PROPERTY".equals(field.getName())
               || "COMPONENTS_SCHEMAS_REF".equals(field.getName())
               || "exampleSetFlag".equals(field.getName())
               || "types".equals(field.getName())
diff --git a/pom.xml b/pom.xml
index 311a476f9..a6f6ba609 100644
--- a/pom.xml
+++ b/pom.xml
@@ -19,7 +19,7 @@
 
   <properties>
     <nexus.staging.autoReleaseAfterClose>true</nexus.staging.autoReleaseAfterClose>
-    <swagger.version>2.2.21</swagger.version>
+    <swagger.version>2.2.22</swagger.version>
     <jackson.version>2.14.2</jackson.version>
     <avaje.prisms.version>1.21</avaje.prisms.version>
     <module-info.shade>${project.build.directory}${file.separator}module-info.shade</module-info.shade>
diff --git a/tests/test-javalin-jsonb/pom.xml b/tests/test-javalin-jsonb/pom.xml
index b64c3af2a..acf533a58 100644
--- a/tests/test-javalin-jsonb/pom.xml
+++ b/tests/test-javalin-jsonb/pom.xml
@@ -13,7 +13,7 @@
   <properties>
     <maven.deploy.skip>true</maven.deploy.skip>
     <main.class>org.example.myapp.Main</main.class>
-    <swagger.version>2.2.21</swagger.version>
+    <swagger.version>2.2.22</swagger.version>
     <kotlin.version>1.3.71</kotlin.version>
   </properties>
 
diff --git a/tests/test-javalin/pom.xml b/tests/test-javalin/pom.xml
index 2c8ab7c01..c6d580258 100644
--- a/tests/test-javalin/pom.xml
+++ b/tests/test-javalin/pom.xml
@@ -12,7 +12,7 @@
   <properties>
     <maven.deploy.skip>true</maven.deploy.skip>
     <main.class>org.example.myapp.Main</main.class>
-    <swagger.version>2.2.21</swagger.version>
+    <swagger.version>2.2.22</swagger.version>
     <kotlin.version>1.3.71</kotlin.version>
   </properties>
 
diff --git a/tests/test-jex/pom.xml b/tests/test-jex/pom.xml
index 7d40767ca..8c1ed7ca2 100644
--- a/tests/test-jex/pom.xml
+++ b/tests/test-jex/pom.xml
@@ -13,7 +13,7 @@
     <maven.deploy.skip>true</maven.deploy.skip>
     <main.class>org.example.myapp.Main</main.class>
     <jex.version>2.5</jex.version>
-    <swagger.version>2.2.21</swagger.version>
+    <swagger.version>2.2.22</swagger.version>
   </properties>
 
   <dependencies>