diff --git a/types/webdriverio/index.d.ts b/types/webdriverio/index.d.ts
index 556e034227..d3521cd41e 100644
--- a/types/webdriverio/index.d.ts
+++ b/types/webdriverio/index.d.ts
@@ -178,6 +178,9 @@ declare namespace WebdriverIO {
         setWindowRect?: boolean;
         timeouts?: Timeouts;
         unhandledPromptBehavior?: string;
+
+        // wdio-sauce-service specific
+        build?: string;
     }
 
     interface DesiredCapabilities extends Capabilities {
@@ -434,6 +437,15 @@ declare namespace WebdriverIO {
         waitforInterval?: number;
         user?: string;
         key?: string;
+
+        // wdio-sauce-service specific
+        sauceConnect?: boolean;
+        sauceConnectOpts?: { [name: string]: any; };
+
+        // wdio-docker-service specific
+        dockerOptions?: { [name: string]: any; };
+        onDockerReady?: ((...args: any[]) => void);
+        dockerLogs?: string;
     }
 
     interface UnknownOptions {