diff --git a/modules/swagger-gradle-plugin/src/main/java/io/swagger/v3/plugins/gradle/tasks/ResolveTask.java b/modules/swagger-gradle-plugin/src/main/java/io/swagger/v3/plugins/gradle/tasks/ResolveTask.java
index ba42d5f8ce..4ffc41ca61 100644
--- a/modules/swagger-gradle-plugin/src/main/java/io/swagger/v3/plugins/gradle/tasks/ResolveTask.java
+++ b/modules/swagger-gradle-plugin/src/main/java/io/swagger/v3/plugins/gradle/tasks/ResolveTask.java
@@ -19,6 +19,7 @@
 import java.net.URL;
 import java.net.URLClassLoader;
 import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.Collection;
@@ -61,10 +62,10 @@ public enum Format {JSON, YAML, JSONANDYAML}
     public final Property<String> scannerClass = getProject().getObjects().property(String.class);
     @Input
     @Optional
-    public final Property<Boolean> prettyPrint = getProject().getObjects().property(Boolean.class);
+    public final Property<Boolean> prettyPrint = getProject().getObjects().property(Boolean.class).convention(false);
     @Input
     @Optional
-    public final Property<Boolean> readAllResources = getProject().getObjects().property(Boolean.class);
+    public final Property<Boolean> readAllResources = getProject().getObjects().property(Boolean.class).convention(false);
     @Input
     @Optional
     public final SetProperty<String> ignoredRoutes = getProject().getObjects().setProperty(String.class);
@@ -86,7 +87,7 @@ public enum Format {JSON, YAML, JSONANDYAML}
     @Input
     @Optional
 
-    public final Property<String> encoding = getProject().getObjects().property(String.class);
+    public final Property<String> encoding = getProject().getObjects().property(String.class).convention(StandardCharsets.UTF_8.name());
     /**
      * @since 2.0.6
      */
@@ -98,16 +99,16 @@ public enum Format {JSON, YAML, JSONANDYAML}
     public final Property<String> objectMapperProcessorClass = getProject().getObjects().property(String.class);
     @Input
     @Optional
-    public final Property<Boolean> sortOutput = getProject().getObjects().property(Boolean.class);
+    public final Property<Boolean> sortOutput = getProject().getObjects().property(Boolean.class).convention(false);
     @Input
     @Optional
 
-    public final Property<Boolean> alwaysResolveAppPath = getProject().getObjects().property(Boolean.class);
+    public final Property<Boolean> alwaysResolveAppPath = getProject().getObjects().property(Boolean.class).convention(false);
     @Input
     @Optional
 
 
-    public final Property<Boolean> skipResolveAppPath = getProject().getObjects().property(Boolean.class);
+    public final Property<Boolean> skipResolveAppPath = getProject().getObjects().property(Boolean.class).convention(false);
     @Input
     @Optional
     public final Property<String> contextId = getProject().getObjects().property(String.class);