diff --git a/conf/buildpack.conf b/conf/buildpack.conf
index 1a1d0e87..ec09c1f8 100644
--- a/conf/buildpack.conf
+++ b/conf/buildpack.conf
@@ -45,5 +45,6 @@ libonig_version="${libonig_version:-6.9.8}"
 zlib_version="${zlib_version:-1.3}"
 igbinary_version="3.2.15"
 mongodb_version="1.18.1"
-amqp_version="1.11.0"
+librabbitmq_version="0.14.0"
+amqp_version="2.1.2"
 phpredis_version="6.0.2"
diff --git a/support/ext/amqp b/support/ext/amqp
index 1ed62918..074fea44 100755
--- a/support/ext/amqp
+++ b/support/ext/amqp
@@ -177,31 +177,54 @@ librabbitmq_prefix="/app/vendor/php/lib/rabbitmq"
 
 # librabbitmq
 # https://github.com/alanxz/rabbitmq-c/releases
-
+# Default `$version` is loaded from the buildpack.conf file.
 pkgname="librabbitmq-c"
-version="0.13.0"
 source_url="https://github.com/alanxz/rabbitmq-c/archive/refs/tags/v%s.tar.gz"
 
-if [ "${STACK}" = "scalingo-18" ]; then
-    version="0.11.0"
-fi
+case "${STACK}" in
+    "scalingo-18")
+        version="0.11.0"
+        ;;
+    "scalingo-20")
+        version="0.13.0"
+        ;;
+    *)
+        version="${librabbitmq_version}"
+        ;;
+esac
 
 build_librabbitmq "${pkgname}" "${version}" "${source_url}" "${librabbitmq_prefix}"
 
 
 # amqp
 # https://pecl.php.net/package/amqp
-# `$version` is loaded from the buildpack.conf file.
-
+# Default `$version` is loaded from the buildpack.conf file.
 pkgname="amqp"
-version="${amqp_version}"
 source_url="https://pecl.php.net/get/amqp-%s.tgz"
 
+case "${STACK}" in
+    "scalingo-18")
+        version="1.11.0"
+        ;;
+    *)
+        version="${amqp_version}"
+        ;;
+esac
+
 build_amqp "${pkgname}" "${version}" "${source_url}" "${librabbitmq_prefix}"
 
 cp "${pkgname}-${version}/modules/amqp.so" "${EXT_DIR}/amqp.so"
 echo "extension=amqp.so" > "${PREFIX}/etc/conf.d/amqp.ini"
 
+# Versions breakdown:
+#
+# | Stack       | amqp   | librabbitmq |
+# | ----------- | ------ | ----------- |
+# | scalingo-22 |  2.1.2 |      0.14.0 |
+# | scalingo-20 |  2.1.2 |      0.13.0 |
+# | scalingo-18 | 1.11.0 |      0.11.0 |
+#
+
 
 # Cleanup