diff --git a/php-82/Dockerfile b/php-82/Dockerfile
index 5cc4759a..ce16612c 100644
--- a/php-82/Dockerfile
+++ b/php-82/Dockerfile
@@ -179,6 +179,7 @@ RUN set -xe; \
 # Install extensions
 # We can install extensions manually or using `pecl`
 RUN pecl install APCu
+RUN pecl install redis-6.2.0
 
 
 # ---------------------------------------------------------------
diff --git a/php-83/Dockerfile b/php-83/Dockerfile
index cabc04e1..0cfac124 100644
--- a/php-83/Dockerfile
+++ b/php-83/Dockerfile
@@ -179,6 +179,7 @@ RUN set -xe; \
 # Install extensions
 # We can install extensions manually or using `pecl`
 RUN pecl install APCu
+RUN pecl install redis-6.2.0
 
 
 # ---------------------------------------------------------------
diff --git a/php-84/Dockerfile b/php-84/Dockerfile
index acfe8bd0..d835bbf5 100644
--- a/php-84/Dockerfile
+++ b/php-84/Dockerfile
@@ -178,6 +178,7 @@ RUN set -xe; \
 # Install extensions
 # We can install extensions manually or using `pecl`
 RUN pecl install APCu
+RUN pecl install redis-6.2.0
 
 
 # ---------------------------------------------------------------
diff --git a/php-85/Dockerfile b/php-85/Dockerfile
index 53b19b77..81c2ce2a 100644
--- a/php-85/Dockerfile
+++ b/php-85/Dockerfile
@@ -178,6 +178,8 @@ RUN set -xe; \
 # Install extensions
 # We can install extensions manually or using `pecl`
 RUN pecl install APCu
+# TODO not available for PHP 8.5 yet
+#RUN pecl install redis-6.2.0
 
 
 # ---------------------------------------------------------------
diff --git a/tests/test_2_extensions.php b/tests/test_2_extensions.php
index 9fb8c5ed..41a627f7 100644
--- a/tests/test_2_extensions.php
+++ b/tests/test_2_extensions.php
@@ -146,6 +146,7 @@
     'intl' => class_exists(\Collator::class),
     'apcu' => function_exists('apcu_add'),
     'soap' => class_exists(\SoapClient::class),
+    'redis' => class_exists(\Redis::class),
 ];
 foreach ($extensionsDisabledByDefault as $extension => $test) {
     if ($test) {
diff --git a/tests/test_3_manual_enabling_extensions.php b/tests/test_3_manual_enabling_extensions.php
index 28927fc8..661125e6 100644
--- a/tests/test_3_manual_enabling_extensions.php
+++ b/tests/test_3_manual_enabling_extensions.php
@@ -6,6 +6,8 @@
     'intl' => class_exists(\Collator::class),
     'apcu' => function_exists('apcu_add'),
     'soap' => class_exists(\SoapClient::class),
+    // TODO redis is not available on PHP 8.5 yet
+    'redis' => PHP_VERSION_ID >= 80500 ? true : class_exists(\Redis::class),
 ];
 
 $extensionDir = ini_get('extension_dir');
diff --git a/tests/test_3_manual_extensions.ini b/tests/test_3_manual_extensions.ini
index beb8a787..13a22503 100644
--- a/tests/test_3_manual_extensions.ini
+++ b/tests/test_3_manual_extensions.ini
@@ -1,3 +1,4 @@
 extension=intl
 extension=apcu
 extension=soap
+extension=redis