diff --git a/.github/workflows/CICD.yml b/.github/workflows/CICD.yml
index 890193d..8f0ee1a 100644
--- a/.github/workflows/CICD.yml
+++ b/.github/workflows/CICD.yml
@@ -82,11 +82,11 @@ jobs:
         job:
           # { os, target, cargo-options, features, use-cross, toolchain }
           - { os: ubuntu-latest  , target: arm-unknown-linux-gnueabihf , use-cross: use-cross }
-          - { os: ubuntu-18.04   , target: i686-unknown-linux-gnu      , use-cross: use-cross }
-          - { os: ubuntu-18.04   , target: i686-unknown-linux-musl     , use-cross: use-cross }
+          - { os: ubuntu-20.04   , target: i686-unknown-linux-gnu      , use-cross: use-cross }
+          - { os: ubuntu-20.04   , target: i686-unknown-linux-musl     , use-cross: use-cross }
+          - { os: ubuntu-20.04   , target: x86_64-unknown-linux-gnu    , use-cross: use-cross }
+          - { os: ubuntu-20.04   , target: x86_64-unknown-linux-musl   , use-cross: use-cross }
           - { os: ubuntu-18.04   , target: x86_64-unknown-linux-gnu    , use-cross: use-cross }
-          - { os: ubuntu-18.04   , target: x86_64-unknown-linux-musl   , use-cross: use-cross }
-          - { os: ubuntu-16.04   , target: x86_64-unknown-linux-gnu    , use-cross: use-cross }
           - { os: macos-latest   , target: x86_64-apple-darwin         }
           - { os: windows-latest , target: i686-pc-windows-gnu         }
           - { os: windows-latest , target: i686-pc-windows-msvc        }