diff --git a/Dockerfile b/Dockerfile
index 4f8192427..a4ae5c156 100755
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,7 +12,7 @@ RUN composer install --ignore-platform-reqs --optimize-autoloader \
     --no-plugins --no-scripts --prefer-dist \
     `if [ "$TESTING" != "true" ]; then echo "--no-dev"; fi`
 
-FROM node:16-alpine as node
+FROM node:16.13.2-alpine3.15 as node
 
 WORKDIR /usr/local/src/
 
@@ -24,7 +24,7 @@ COPY public /usr/local/src/public
 RUN npm ci
 RUN npm run build
 
-FROM php:8.0-cli-alpine as compile
+FROM php:8.0.14-cli-alpine3.15 as compile
 
 ARG DEBUG=false
 ENV DEBUG=$DEBUG
@@ -123,7 +123,7 @@ RUN \
   ./configure && \
   make && make install
 
-FROM php:8.0-cli-alpine as final
+FROM php:8.0.14-cli-alpine3.15 as final
 
 LABEL maintainer="team@appwrite.io"
 
diff --git a/tests/e2e/Services/Realtime/RealtimeBase.php b/tests/e2e/Services/Realtime/RealtimeBase.php
index 277537d40..4357bec38 100644
--- a/tests/e2e/Services/Realtime/RealtimeBase.php
+++ b/tests/e2e/Services/Realtime/RealtimeBase.php
@@ -66,6 +66,7 @@ trait RealtimeBase
         $this->assertEquals('error', $payload['type']);
         $this->assertEquals(1008, $payload['data']['code']);
         $this->assertEquals('Missing or unknown project ID', $payload['data']['message']);
+        \usleep(250000); // 250ms
         $this->expectException(ConnectionException::class); // Check if server disconnnected client
         $client->close();
     }