diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 02bfc7555..c75204ae8 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -7,6 +7,13 @@ updates:
       interval: "weekly"
 
   # XXX: also check on other (non-default) edge branches
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    labels: []
+    schedule:
+      interval: "weekly"
+    target-branch: "5.21-edge"
+
   - package-ecosystem: "github-actions"
     directory: "/"
     labels: []
diff --git a/snapcraft.yaml b/snapcraft.yaml
index ec1649194..be9629c95 100644
--- a/snapcraft.yaml
+++ b/snapcraft.yaml
@@ -1041,6 +1041,7 @@ parts:
     source-tag: v1.10.1
     source-type: git
     plugin: rust
+    rust-channel: stable
     build-packages:
       - cargo
       - libseccomp-dev
@@ -1286,6 +1287,7 @@ parts:
 
   lxcfs:
     source: https://github.com/lxc/lxcfs
+    source-branch: stable-6.0
     source-depth: 1
     source-type: git
     build-packages: