diff --git a/Dockerfile b/Dockerfile
index 8b854678..094a3175 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -68,7 +68,6 @@ RUN rm -rf ./node_modules ./tmp/cache ./.git ./test ./doc
 USER root
 RUN apk add --no-cache findutils
 RUN find /home/app/checkout/vendor/ruby/2.7.0 -maxdepth 3 -type d -name test -o -name spec -o -name rubocop | xargs -r rm -rf
-RUN cd /home/app/checkout/vendor/ruby/2.7.0/gems/prometheus_exporter-0.5.3 && patch -Np 0 -i /home/app/checkout/prom.patch
 
 # Contenedor final
 FROM sutty/monit:latest
diff --git a/prom.patch b/prom.patch
deleted file mode 100644
index 27c1d4a0..00000000
--- a/prom.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- lib/prometheus_exporter/instrumentation/active_record.rb.orig	2020-10-05 19:06:08.912325451 -0300
-+++ lib/prometheus_exporter/instrumentation/active_record.rb	2020-10-05 19:06:12.229036702 -0300
-@@ -69,7 +69,7 @@
- 
-         labels_from_config = pool.spec.config
-           .select { |k, v| @config_labels.include? k }
--          .map { |k, v| [k.to_s.prepend("dbconfig_"), v] }
-+          .map { |k, v| [k.to_s.dup.prepend("dbconfig_"), v] }
- 
-         labels = @metric_labels.merge(pool_name: pool.spec.name).merge(Hash[labels_from_config])
-