diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9242f69..f699ed4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
   compile:
     strategy:
       matrix:
-        os: [ ubuntu-16.04, ubuntu-18.04, macos-latest, windows-latest ]
+        os: [ ubuntu-18.04, macos-latest, windows-latest ]
         build: [ cli, cli-mt, cli-ansi, cli-ansi-mt, gui, gui-mt ]
         include:
           - build: cli
diff --git a/.github/workflows/package.yml b/.github/workflows/package.yml
index 8ff79a5..ae34287 100644
--- a/.github/workflows/package.yml
+++ b/.github/workflows/package.yml
@@ -9,7 +9,6 @@ jobs:
   ubuntu:
     strategy:
       matrix:
-        os: [ ubuntu-16.04, ubuntu-18.04 ]
         component: [ cli, gui ]
         include:
           - component: cli
@@ -17,7 +16,7 @@ jobs:
           - component: gui
             build-opts: --no-cli --gui -t Release --pkg-type deb
     name: ${{matrix.os}} (${{matrix.component}})
-    runs-on: ${{matrix.os}}
+    runs-on: ubuntu-18.04
     steps:
       - uses: actions/checkout@v1