diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index cbe89ca..a4d5174 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -13,7 +13,7 @@ jobs:
   test:
     strategy:
       matrix:
-        image: [ ubuntu, ubuntu-14.04, alpine, debian, amazonlinux, centos7, rockylinux8, rockylinux9, fedora]
+        image: [ ubuntu, ubuntu-14.04, alpine, debian, amazonlinux, rockylinux8, rockylinux9, fedora]
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
diff --git a/README.md b/README.md
index 55c6dd8..fb6b614 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@
 
 
 This is a script to automate [Oh My Zsh](https://ohmyz.sh/) installation in development containers.
-Works with any image based on Alpine, Ubuntu, Debian, Amazon Linux, CentOS 7, RockyLinux 8,9 and Fedora.
+Works with any image based on Alpine, Ubuntu, Debian, Amazon Linux, RockyLinux 8,9 and Fedora.
 
 The original goal was to simplify setting up `zsh` and Oh My Zsh in a Docker image for use with [VSCode's Remote Containers
 extension](https://code.visualstudio.com/docs/remote/containers), but it can be used whenever you
diff --git a/docker-compose.yml b/docker-compose.yml
index 3e59e47..b626f24 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -31,11 +31,6 @@ services:
     entrypoint: /bin/sh
     command: -c "while sleep 1000; do :; done"
 
-  test-centos7:
-    image: centos:7
-    entrypoint: /bin/sh
-    command: -c "while sleep 1000; do :; done"
-
   test-rockylinux8:
     image: rockylinux:8
     entrypoint: /bin/sh
diff --git a/test.sh b/test.sh
index a758343..198c59b 100755
--- a/test.sh
+++ b/test.sh
@@ -43,7 +43,7 @@ test_suite() {
     docker compose stop -t 1 test-$image_name
 }
 
-images=${*:-"alpine ubuntu ubuntu-14.04 debian amazonlinux centos7 rockylinux8 rockylinux9 fedora"}
+images=${*:-"alpine ubuntu ubuntu-14.04 debian amazonlinux rockylinux8 rockylinux9 fedora"}
 
 for image in $images; do
     test_suite $image
diff --git a/zsh-in-docker.sh b/zsh-in-docker.sh
index ccaf357..c022b9a 100755
--- a/zsh-in-docker.sh
+++ b/zsh-in-docker.sh
@@ -94,7 +94,7 @@ install_dependencies() {
             $Sudo yum install -y git zsh
             $Sudo yum install -y ncurses-compat-libs # this is required for AMZN Linux (ref: https://github.com/emqx/emqx/issues/2503)
         ;;
-        rhel|fedora|centos|rocky)
+        rhel|fedora|rocky)
             $Sudo yum update -y
             $Sudo yum install -y git zsh
         ;;