diff --git a/.travis.yml b/.travis.yml
index 5dce8cd4a..d1c4f3c60 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -23,29 +23,29 @@ jobs:
       script: .maintain/ci/fmt_script.sh
 
     - stage: Build
-      env: RUST_TOOLCHAIN=nightly TARGET=native
+      env: RUST_TOOLCHAIN=nightly-2020-02-07 TARGET=native
       script: .maintain/ci/build_script.sh
 
     - stage: Build
-      env: RUST_TOOLCHAIN=nightly TARGET=wasm
+      env: RUST_TOOLCHAIN=nightly-2020-02-07 TARGET=wasm
       script: .maintain/ci/build_script.sh
 
     - stage: Darwinia Test
-      env: RUST_TOOLCHAIN=nightly TARGET=native KTON
+      env: RUST_TOOLCHAIN=nightly-2020-02-07 TARGET=native KTON
       script: .maintain/ci/darwinia_test_script.sh kton
 
     - stage: Darwinia Test
-      env: RUST_TOOLCHAIN=nightly TARGET=native RING
+      env: RUST_TOOLCHAIN=nightly-2020-02-07 TARGET=native RING
       script: .maintain/ci/darwinia_test_script.sh ring
 
   # TODO: remove this, when staking test case upgrade ready
   allow_failures:
     - stage: Darwinia Test
-      env: RUST_TOOLCHAIN=nightly TARGET=native STAKING
+      env: RUST_TOOLCHAIN=nightly-2020-02-07 TARGET=native STAKING
       script: .maintain/ci/darwinia_test_script.sh staking
 
     - stage: Overall Test 
-      env: RUST_TOOLCHAIN=nightly TARGET=native
+      env: RUST_TOOLCHAIN=nightly-2020-02-07 TARGET=native
       script: .maintain/ci/test_script.sh
 
 after_script: