diff --git a/images/8.3/Dockerfile-alpine b/images/8.3/Dockerfile-alpine
index 8c5fa9e..2799be4 100644
--- a/images/8.3/Dockerfile-alpine
+++ b/images/8.3/Dockerfile-alpine
@@ -129,7 +129,7 @@ RUN composer global config --no-plugins allow-plugins.ergebnis/composer-normaliz
 
 # Install infection/infection for mutation testing
 RUN apk add --update linux-headers && rm -rf /var/cache/apk/*
-RUN pecl install xdebug && docker-php-ext-enable xdebug && docker-php-ext-configure zip && docker-php-ext-install zip
+RUN pecl install xdebug-3.3.0alpha3 && docker-php-ext-enable xdebug && docker-php-ext-configure zip && docker-php-ext-install zip
 RUN composer global config --no-plugins allow-plugins.infection/extension-installer true && composer global require infection/infection
 
 # Install Deptrac