diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 5747091..3717b5b 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-24.04
     strategy:
       matrix:
-        php: ['8.0', '8.4']
+        php: ['8.1', '8.4']
     steps:
       - uses: actions/checkout@v4
 
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 200123a..31659a8 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -49,7 +49,7 @@ jobs:
 
       # The MySQL and PostgreSQL jobs run tests across multiple PHP versions.
       # List the PHP versions you want your extension tested with.
-      PHP_VERSION_MATRIX: '["8.2", "8.3", "8.4"]'
+      PHP_VERSION_MATRIX: '["8.1", "8.2", "8.3", "8.4"]'
 
   # EPV (Extension Pre Validator), failing on any Fatal or Error finding not
   # listed in .github/epv-allowed.txt
diff --git a/README.md b/README.md
index 51ffbcf..874906b 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@ Click a screenshot for the full size. More screenshots, including the phone layo
 ## Requirements
 
 - phpBB 3.3.19 or a later 3.3 release
-- PHP 8.0 or later
+- PHP 8.1 or later
 
 ## Installation