diff --git a/.travis.yml b/.travis.yml
index 0654afa27..2d93f7c7e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -50,7 +50,7 @@ jobs:
         - make .gitvalidation
         - make verify
         - make binaries
-      go: 1.8.x
+      go: 1.9.x
     - script:
         - make install.tools
         - make .gitvalidation
@@ -69,18 +69,18 @@ jobs:
         - cat /tmp/test-integration/containerd.log
         - cat /tmp/test-cri/cri-containerd.log
         - cat /tmp/test-cri/containerd.log
-      go: 1.8.x
+      go: 1.9.x
     - stage: E2E Test
       script:
         # Skip node e2e test for pull request.
         - test "${TRAVIS_PULL_REQUEST}" != "false" && exit 0 || true
         - make install.deps
         - UPLOAD_LOG=true make test-e2e-node
-      go: 1.8.x
+      go: 1.9.x
     - stage: Deploy
       script:
         - test "${TRAVIS_PULL_REQUEST}" != "false" && exit 0 || true
         - make push
         # Build a tarball including CNI.
         - PUSH_VERSION=true make push TARBALL_PREFIX=cri-containerd-cni INCLUDE_CNI=true
-      go: 1.8.x
+      go: 1.9.x
diff --git a/README.md b/README.md
index bdeb08ebe..20c572ade 100644
--- a/README.md
+++ b/README.md
@@ -48,7 +48,7 @@ backport version of `libsecomp-dev` is required. See [travis.yml](.travis.yml) f
 2. Install other dependencies:
 * **`nsenter`**: Required by CNI and portforward.
 * **`socat`**: Required by portforward.
-3. Install and setup a go 1.8.x development environment.
+3. Install and setup a go 1.9.x development environment.
 4. Make a local clone of this repository.
 5. Install binary dependencies by running the following command from your cloned `cri-containerd/` project directory:
 ```bash