diff --git a/ci/buildkite.yml b/ci/buildkite.yml
index 472b6d6c3a..e0c18e6e0f 100644
--- a/ci/buildkite.yml
+++ b/ci/buildkite.yml
@@ -12,7 +12,7 @@ steps:
   - command: "ci/shellcheck.sh"
     name: "shellcheck [public]"
     timeout_in_minutes: 20
-  - command: "ci/docker-run.sh solanalabs/rust-nightly:2018-09-03 ci/test-nightly.sh || true"
+  - command: "ci/docker-run.sh solanalabs/rust-nightly:2018-09-28 ci/test-nightly.sh || true"
     name: "nightly [public]"
     env:
       CARGO_TARGET_CACHE_NAME: "nightly"
diff --git a/ci/version-check.sh b/ci/version-check.sh
index 1839498435..44826e5f15 100755
--- a/ci/version-check.sh
+++ b/ci/version-check.sh
@@ -20,7 +20,7 @@ require() {
 case ${1:-stable} in
 nightly)
   require rustc 1.30.[0-9]+-nightly
-  require cargo 1.29.[0-9]+-nightly
+  require cargo 1.31.[0-9]+-nightly
   ;;
 stable)
   require rustc 1.29.[0-9]+