diff --git a/ansible/vars/metacluster.yml b/ansible/vars/metacluster.yml
index 41ed9c3..16127f3 100644
--- a/ansible/vars/metacluster.yml
+++ b/ansible/vars/metacluster.yml
@@ -58,6 +58,7 @@ components:
 
   argo-cd:
     helm:
+      # Must match the version referenced at `dependencies.static_binaries[.filename==argo].url`
       version: 6.7.7  # (=Argo CD v2.10.5)
       chart: argo/argo-cd
       parse_logic: helm template . | yq --no-doc eval '.. | .image? | select(.)' | sort -u | awk '!/ /'
@@ -363,6 +364,8 @@ dependencies:
     - registry.k8s.io/sig-storage/livenessprobe:v2.10.0
 
   static_binaries:
+    - filename: argo
+      url: https://github.com/argoproj/argo-workflows/releases/download/v3.5.7/argo-linux-amd64.gz
     - filename: clusterctl
       url: https://github.com/kubernetes-sigs/cluster-api/releases/download/v1.6.3/clusterctl-linux-amd64
     - filename: govc