diff --git a/php-worker/Dockerfile b/php-worker/Dockerfile
index 17959f9..14a0ea2 100644
--- a/php-worker/Dockerfile
+++ b/php-worker/Dockerfile
@@ -39,8 +39,9 @@ RUN apk --update add wget \
 
 RUN pecl channel-update pecl.php.net; \
   docker-php-ext-install mysqli mbstring pdo pdo_mysql xml pcntl; \
-  if [ $(php -r "echo PHP_MAJOR_VERSION;") = "8" ] && [ $(php -r "echo PHP_MINOR_VERSION;") = "1" ]; then \
-    php -m | grep -q 'tokenizer'; \
+  if [ $(php -r "echo PHP_VERSION_ID - PHP_RELEASE_VERSION;") = "80100" ] || \
+     [ $(php -r "echo PHP_VERSION_ID - PHP_RELEASE_VERSION;") = "80200" ]; then \
+    php -m | grep -oiE '^tokenizer$'; \
   else \
     docker-php-ext-install tokenizer; \
   fi