diff --git a/alpine/3.20/8.3/Dockerfile b/alpine/3.20/8.3/Dockerfile
index 602b0868..19a9dcb2 100644
--- a/alpine/3.20/8.3/Dockerfile
+++ b/alpine/3.20/8.3/Dockerfile
@@ -27,8 +27,6 @@ ARG PHP_RUN_DEPS="\
     libxpm \
     libxslt \
     libzip \
-    protobuf \
-    grpc \
     rabbitmq-c"
 
 ARG PHP_BUILD_DEPS="\
@@ -69,15 +67,15 @@ ARG PHP_EXTENSIONS="\
 
 ARG PHP_PECL_EXTENSIONS="\
     apcu \
+    opentelemetry \
+    protobuf \
+    grpc \
     redis"
 
 ARG ADDITIONAL_PHP_PECL_EXTENSIONS="\
     pcov \
     xdebug \
     xhprof \
-    opentelemetry \
-    protobuf \
-    grpc \
     amqp"
 
 ARG GRAPHVIZ_BUILD_DEPS="\
@@ -191,6 +189,15 @@ COPY context/php/conf.d/90-opcache.ini /usr/local/etc/php/conf.d/
 COPY context/php/conf.d/92-session.ini /usr/local/etc/php/conf.d/
 COPY context/php/disabled /usr/local/etc/php/disabled
 
+#OTEL: disable code instrumentattion by default
+ENV OTEL_SDK_DISABLED=true
+ENV OTEL_PHP_DISABLED_INSTRUMENTATIONS="all"
+
+#OTEL: Disable OTEL related extensions and keep original configs.
+RUN mv /usr/local/etc/php/conf.d/docker-php-ext-opentelemetry.ini /usr/local/etc/php/disabled/opentelemetry.ini
+RUN mv /usr/local/etc/php/conf.d/docker-php-ext-protobuf.ini /usr/local/etc/php/disabled/protobuf.ini
+RUN mv /usr/local/etc/php/conf.d/docker-php-ext-grpc.ini /usr/local/etc/php/disabled/grpc.ini
+
 WORKDIR /data
 
 # Install composer