diff --git a/.github/workflows/test-docker.yml b/.github/workflows/test-docker.yml
index 84c46b1d4..4f01abe44 100644
--- a/.github/workflows/test-docker.yml
+++ b/.github/workflows/test-docker.yml
@@ -42,7 +42,6 @@ jobs:
           fedora-37-amd64,
           fedora-38-amd64,
           gentoo,
-          ubuntu-18.04-bionic-amd64,
           ubuntu-20.04-focal-amd64,
           ubuntu-22.04-jammy-amd64,
         ]
diff --git a/docs/installation.rst b/docs/installation.rst
index 21dcd0227..a254ec8c2 100644
--- a/docs/installation.rst
+++ b/docs/installation.rst
@@ -457,8 +457,6 @@ These platforms are built and tested for every change.
 | macOS 12 Monterey                | 3.8, 3.9, 3.10, 3.11,      | x86-64              |
 |                                  | 3.12, PyPy3                |                     |
 +----------------------------------+----------------------------+---------------------+
-| Ubuntu Linux 18.04 LTS (Bionic)  | 3.9                        | x86-64              |
-+----------------------------------+----------------------------+---------------------+
 | Ubuntu Linux 20.04 LTS (Focal)   | 3.8                        | x86-64              |
 +----------------------------------+----------------------------+---------------------+
 | Ubuntu Linux 22.04 LTS (Jammy)   | 3.8, 3.9, 3.10, 3.11,      | x86-64              |