diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b6c59a9..4427512 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -33,14 +33,6 @@ jobs:
       matrix:
         include:
           # Linux, gcc
-          - toolset: gcc-4.6
-            cxxstd: "0x"
-            os: ubuntu-latest
-            container: ubuntu:16.04
-            install:
-              - g++-4.6
-            sources:
-              - "ppa:ubuntu-toolchain-r/test"
           - toolset: gcc-4.7
             cxxstd: "11"
             os: ubuntu-latest