diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4f2d9c0e..712b3824 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -46,9 +46,9 @@ jobs:
           - { compiler: gcc-9,     cxxstd: '03,11,14,17',    os: ubuntu-20.04, install: 'g++-9' }
           - { compiler: gcc-10,    cxxstd: '03,11,14,17,20', os: ubuntu-22.04, install: 'g++-10' }
           - { compiler: gcc-11,    cxxstd: '03,11,14,17,20', os: ubuntu-22.04, install: 'g++-11' }
-          - { name: "gcc-12 w/ sanitizers (03,11,14)", sanitize: yes,
+          - { name: "gcc-12 w/ sanitizers (03,11,14)", sanitize: yes,           ccache: no,
               compiler: gcc-12,    cxxstd: '03,11,14',       os: ubuntu-22.04 }
-          - { name: "gcc-12 w/ sanitizers (17,20,2b)", sanitize: yes,
+          - { name: "gcc-12 w/ sanitizers (17,20,2b)", sanitize: yes,           ccache: no,
               compiler: gcc-12,    cxxstd: '17,20,2b',       os: ubuntu-22.04 }
           - { name: Collect coverage, coverage: yes,
               compiler: gcc-12,     cxxstd: '03,20',          os: ubuntu-22.04, install: 'g++-12-multilib', address-model: '32,64', ccache_key: "cov" }