diff --git a/php-worker/Dockerfile b/php-worker/Dockerfile
index 7414459d..8620a593 100644
--- a/php-worker/Dockerfile
+++ b/php-worker/Dockerfile
@@ -38,7 +38,12 @@ RUN apk --update add wget \
 
 
 RUN pecl channel-update pecl.php.net; \
-  docker-php-ext-install mysqli mbstring pdo pdo_mysql tokenizer xml pcntl
+  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'; \
+  else \
+    docker-php-ext-install tokenizer; \
+  fi
 
 # Add a non-root user:
 ARG PUID=1000