diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0c72daeef8..962899a759 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -156,14 +156,15 @@ jobs:
 
               # Explanation for installing some less obvious packages:
               #   - coreutils contains nproc used in proc_count.sh called below.
-              #   - libffi-dev is needed to build Python cffi module which is
-              #     built as part of "pip install httpbin".
               #   - Python can't be installed using the action as usual because
               #     it installs an ABI-incompatible version, see (wrongly, IMO)
               #     closed https://github.com/actions/setup-python/issues/370
+              #   - And python3-cffi can't be installed by pip because it can't
+              #     be built from source with gcc 4.8 any longer (its build
+              #     script uses -Wdate-time option unknown to this compiler).
               #   - xvfb is used for running the GUI tests.
               apt-get update -qq
-              apt-get install -qq coreutils ${compiler-g++} git libffi-dev make pkg-config python3 python3-pip sudo xvfb
+              apt-get install -qq coreutils ${compiler-g++} git make pkg-config python3 python3-cffi python3-pip sudo xvfb
               ;;
 
             '')