diff --git a/.travis.yml b/.travis.yml
index 1d9fab97..f975b37f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -18,7 +18,11 @@ matrix:
   - os: linux
     dist: xenial # or later
     language: python
-    python: 3.9-dev
+    python: 3.9
+  - os: linux
+    dist: xenial # or later
+    language: python
+    python: 3.10-dev
   - os: linux
     dist: xenial
     language: java
diff --git a/appveyor.yml b/appveyor.yml
index a1f89b62..1b6800f9 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -21,6 +21,8 @@ environment:
       JAVA_HOME: "C:\\Program Files\\Java\\jdk12"
     - PYTHON: "C:\\Python38-x64"
       JAVA_HOME: "C:\\Program Files\\Java\\jdk11"
+    - PYTHON: "C:\\Python39-x64"
+      JAVA_HOME: "C:\\Program Files\\Java\\jdk11"
 
 build: off