diff --git a/bindep.txt b/bindep.txt
new file mode 100644
index 0000000..17575d9
--- /dev/null
+++ b/bindep.txt
@@ -0,0 +1,4 @@
+libffi-dev [platform:dpkg]
+libpq-dev [platform:dpkg]
+libxml2-dev [platform:dpkg]
+libxslt1-dev [platform:dpkg]
diff --git a/src/build.lock b/src/build.lock
index 916e1bc..5edf7aa 100644
--- a/src/build.lock
+++ b/src/build.lock
@@ -29,8 +29,8 @@
       "item": "layer:openstack",
       "url": "https://github.com/openstack/charm-layer-openstack",
       "vcs": null,
-      "branch": "207bac8bec837edc6a4d6003f51d5b59d2d75adb",
-      "commit": "207bac8bec837edc6a4d6003f51d5b59d2d75adb"
+      "branch": "f9a11fde2e136fc45ee619f3e94eb93fcffb117d",
+      "commit": "f9a11fde2e136fc45ee619f3e94eb93fcffb117d"
     },
     {
       "type": "layer",
@@ -85,8 +85,8 @@
       "item": "interface:keystone",
       "url": "https://github.com/openstack/charm-interface-keystone",
       "vcs": null,
-      "branch": "a48a1e826ac0a74ab05a16c441cda4e4b34b1241",
-      "commit": "a48a1e826ac0a74ab05a16c441cda4e4b34b1241"
+      "branch": "501af18b3036f5af92990bc39e750e76e393e5eb",
+      "commit": "501af18b3036f5af92990bc39e750e76e393e5eb"
     },
     {
       "type": "layer",
@@ -227,4 +227,4 @@
       "version": "21.10.1"
     }
   ]
-}
\ No newline at end of file
+}