diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index 5dbbf11..e2985b1 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -40,7 +40,7 @@ jobs:
           - '8.1'
         refs:
           - 'master'
-          - '0.129'
+          - '0.130'
     steps:
 
       # ------------------------------------------------------------
diff --git a/CHANGELOG.md b/CHANGELOG.md
index b2c4bf2..080ac6a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,15 @@
 ## Unreleased
 
 
+## Release 0.130
+
+#### Fixed
+- Fixed correct keys for `apt`
+
+#### Added
+- Added integration checks for `apt update`
+
+
 ## Release 0.129
 
 #### Fixed
diff --git a/Dockerfiles/work/Dockerfile-5.6 b/Dockerfiles/work/Dockerfile-5.6
index a7fbf7d..82a553b 100644
--- a/Dockerfiles/work/Dockerfile-5.6
+++ b/Dockerfiles/work/Dockerfile-5.6
@@ -54,6 +54,7 @@ RUN set -eux \
 		dirmngr \
 		gnupg \
 		\
+	&& apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 648ACFD622F3D138 \
 	&& echo "deb http://ftp.debian.org/debian stretch-backports main" > /etc/apt/sources.list.d/backports.list \
 	&& curl -sS -L --fail "https://packages.blackfire.io/gpg.key" | APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE=1 apt-key add - \
 	&& echo "deb http://packages.blackfire.io/debian any main" > /etc/apt/sources.list.d/blackfire.list \
diff --git a/Dockerfiles/work/Dockerfile-7.0 b/Dockerfiles/work/Dockerfile-7.0
index 45e3a19..a242ff9 100644
--- a/Dockerfiles/work/Dockerfile-7.0
+++ b/Dockerfiles/work/Dockerfile-7.0
@@ -54,6 +54,7 @@ RUN set -eux \
 		dirmngr \
 		gnupg \
 		\
+	&& apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 648ACFD622F3D138 \
 	&& echo "deb http://ftp.debian.org/debian stretch-backports main" > /etc/apt/sources.list.d/backports.list \
 	&& curl -sS -L --fail "https://packages.blackfire.io/gpg.key" | APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE=1 apt-key add - \
 	&& echo "deb http://packages.blackfire.io/debian any main" > /etc/apt/sources.list.d/blackfire.list \
diff --git a/Dockerfiles/work/Dockerfile-7.1 b/Dockerfiles/work/Dockerfile-7.1
index 7a52f9a..58fd8d9 100644
--- a/Dockerfiles/work/Dockerfile-7.1
+++ b/Dockerfiles/work/Dockerfile-7.1
@@ -54,6 +54,7 @@ RUN set -eux \
 		dirmngr \
 		gnupg \
 		\
+	&& apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 648ACFD622F3D138 \
 	&& echo "deb http://ftp.debian.org/debian stretch-backports main" > /etc/apt/sources.list.d/backports.list \
 	&& curl -sS -L --fail "https://packages.blackfire.io/gpg.key" | APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE=1 apt-key add - \
 	&& echo "deb http://packages.blackfire.io/debian any main" > /etc/apt/sources.list.d/blackfire.list \
diff --git a/Dockerfiles/work/Dockerfile-7.2 b/Dockerfiles/work/Dockerfile-7.2
index 899d286..4e72bf5 100644
--- a/Dockerfiles/work/Dockerfile-7.2
+++ b/Dockerfiles/work/Dockerfile-7.2
@@ -54,6 +54,7 @@ RUN set -eux \
 		dirmngr \
 		gnupg \
 		\
+	&& apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 648ACFD622F3D138 \
 	&& echo "deb http://ftp.debian.org/debian stretch-backports main" > /etc/apt/sources.list.d/backports.list \
 	&& curl -sS -L --fail "https://packages.blackfire.io/gpg.key" | APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE=1 apt-key add - \
 	&& echo "deb http://packages.blackfire.io/debian any main" > /etc/apt/sources.list.d/blackfire.list \
diff --git a/Dockerfiles/work/Dockerfile-7.3 b/Dockerfiles/work/Dockerfile-7.3
index 629ef69..d27f533 100644
--- a/Dockerfiles/work/Dockerfile-7.3
+++ b/Dockerfiles/work/Dockerfile-7.3
@@ -54,6 +54,7 @@ RUN set -eux \
 		dirmngr \
 		gnupg \
 		\
+	&& apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 648ACFD622F3D138 \
 	&& echo "deb http://ftp.debian.org/debian stretch-backports main" > /etc/apt/sources.list.d/backports.list \
 	&& curl -sS -L --fail "https://packages.blackfire.io/gpg.key" | APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE=1 apt-key add - \
 	&& echo "deb http://packages.blackfire.io/debian any main" > /etc/apt/sources.list.d/blackfire.list \
diff --git a/Dockerfiles/work/Dockerfile-7.4 b/Dockerfiles/work/Dockerfile-7.4
index 0ec547f..db80cf1 100644
--- a/Dockerfiles/work/Dockerfile-7.4
+++ b/Dockerfiles/work/Dockerfile-7.4
@@ -54,6 +54,7 @@ RUN set -eux \
 		dirmngr \
 		gnupg \
 		\
+	&& apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 648ACFD622F3D138 \
 	&& echo "deb http://ftp.debian.org/debian stretch-backports main" > /etc/apt/sources.list.d/backports.list \
 	&& curl -sS -L --fail "https://packages.blackfire.io/gpg.key" | APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE=1 apt-key add - \
 	&& echo "deb http://packages.blackfire.io/debian any main" > /etc/apt/sources.list.d/blackfire.list \
diff --git a/Dockerfiles/work/Dockerfile-8.0 b/Dockerfiles/work/Dockerfile-8.0
index af20a9d..7148d57 100644
--- a/Dockerfiles/work/Dockerfile-8.0
+++ b/Dockerfiles/work/Dockerfile-8.0
@@ -54,6 +54,7 @@ RUN set -eux \
 		dirmngr \
 		gnupg \
 		\
+	&& apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 648ACFD622F3D138 \
 	&& echo "deb http://ftp.debian.org/debian stretch-backports main" > /etc/apt/sources.list.d/backports.list \
 	&& curl -sS -L --fail "https://packages.blackfire.io/gpg.key" | APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE=1 apt-key add - \
 	&& echo "deb http://packages.blackfire.io/debian any main" > /etc/apt/sources.list.d/blackfire.list \
diff --git a/Dockerfiles/work/Dockerfile-8.1 b/Dockerfiles/work/Dockerfile-8.1
index cb927f5..e28cdd9 100644
--- a/Dockerfiles/work/Dockerfile-8.1
+++ b/Dockerfiles/work/Dockerfile-8.1
@@ -54,6 +54,7 @@ RUN set -eux \
 		dirmngr \
 		gnupg \
 		\
+	&& apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 648ACFD622F3D138 \
 	&& echo "deb http://ftp.debian.org/debian stretch-backports main" > /etc/apt/sources.list.d/backports.list \
 	&& curl -sS -L --fail "https://packages.blackfire.io/gpg.key" | APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE=1 apt-key add - \
 	&& echo "deb http://packages.blackfire.io/debian any main" > /etc/apt/sources.list.d/blackfire.list \
diff --git a/build/ansible/group_vars/all/work.yml b/build/ansible/group_vars/all/work.yml
index 2fb819a..92bbbbe 100644
--- a/build/ansible/group_vars/all/work.yml
+++ b/build/ansible/group_vars/all/work.yml
@@ -141,6 +141,7 @@ apt_repositories_available:
       pre: echo 'Acquire::Check-Valid-Until no;' > /etc/apt/apt.conf.d/99no-check-valid-until
       deb: deb http://archive.debian.org/debian jessie-backports main
     all:
+      pre: apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 648ACFD622F3D138
       deb: deb http://ftp.debian.org/debian stretch-backports main
   blackfire:
     all:
diff --git a/tests/base/06-test-apt-repositories.sh b/tests/base/06-test-apt-repositories.sh
new file mode 100755
index 0000000..598245d
--- /dev/null
+++ b/tests/base/06-test-apt-repositories.sh
@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+
+set -e
+set -u
+set -o pipefail
+
+CWD="$(cd -P -- "$(dirname -- "$0")" && pwd -P)"
+
+IMAGE="${1}"
+VERSION="${2}"
+FLAVOUR="${3}"
+
+# shellcheck disable=SC1090
+. "${CWD}/../.lib.sh"
+
+
+
+############################################################
+# Tests
+############################################################
+
+###
+### Ensuring 'apt update' works without any issues
+###
+did="$( docker_run "${IMAGE}:${VERSION}-${FLAVOUR}" "-e DEBUG_ENTRYPOINT=2" )"
+
+if ! docker_exec "${did}" "apt update"; then
+	docker_logs "${did}" || true
+	docker_stop "${did}" || true
+	echo "Failed"
+	exit 1
+fi
+docker_stop "${did}"