diff --git a/class/defaults.yml b/class/defaults.yml
index 941521ce..e45a4f03 100644
--- a/class/defaults.yml
+++ b/class/defaults.yml
@@ -43,7 +43,7 @@ parameters:
       vault_agent:
         registry: docker.io
         repository: hashicorp/vault
-        tag: '1.20.4'
+        tag: '1.21.0'
       argocd:
         registry: quay.io
         repository: argoproj/argocd
diff --git a/tests/golden/defaults/argocd/argocd/30_argocd/10_argocd.yaml b/tests/golden/defaults/argocd/argocd/30_argocd/10_argocd.yaml
index c9a9a14d..32554c0a 100644
--- a/tests/golden/defaults/argocd/argocd/30_argocd/10_argocd.yaml
+++ b/tests/golden/defaults/argocd/argocd/30_argocd/10_argocd.yaml
@@ -101,7 +101,7 @@ spec:
             value: 'true'
           - name: VAULT_ADDR
             value: test.syn.tools
-        image: docker.io/hashicorp/vault:1.20.4
+        image: docker.io/hashicorp/vault:1.21.0
         imagePullPolicy: IfNotPresent
         name: vault-agent
         ports: []
diff --git a/tests/golden/https-catalog/argocd/argocd/30_argocd/10_argocd.yaml b/tests/golden/https-catalog/argocd/argocd/30_argocd/10_argocd.yaml
index 78b5184b..bdac7de0 100644
--- a/tests/golden/https-catalog/argocd/argocd/30_argocd/10_argocd.yaml
+++ b/tests/golden/https-catalog/argocd/argocd/30_argocd/10_argocd.yaml
@@ -101,7 +101,7 @@ spec:
             value: 'true'
           - name: VAULT_ADDR
             value: test.syn.tools
-        image: docker.io/hashicorp/vault:1.20.4
+        image: docker.io/hashicorp/vault:1.21.0
         imagePullPolicy: IfNotPresent
         name: vault-agent
         ports: []
diff --git a/tests/golden/openshift/argocd/argocd/30_argocd/10_argocd.yaml b/tests/golden/openshift/argocd/argocd/30_argocd/10_argocd.yaml
index 719f3c06..fa42ad34 100644
--- a/tests/golden/openshift/argocd/argocd/30_argocd/10_argocd.yaml
+++ b/tests/golden/openshift/argocd/argocd/30_argocd/10_argocd.yaml
@@ -106,7 +106,7 @@ spec:
             value: 'true'
           - name: VAULT_ADDR
             value: test.syn.tools
-        image: docker.io/hashicorp/vault:1.20.4
+        image: docker.io/hashicorp/vault:1.21.0
         imagePullPolicy: IfNotPresent
         name: vault-agent
         ports: []
diff --git a/tests/golden/params/argocd/argocd/30_argocd/10_argocd.yaml b/tests/golden/params/argocd/argocd/30_argocd/10_argocd.yaml
index 13652378..9d0425fa 100644
--- a/tests/golden/params/argocd/argocd/30_argocd/10_argocd.yaml
+++ b/tests/golden/params/argocd/argocd/30_argocd/10_argocd.yaml
@@ -85,7 +85,7 @@ spec:
             value: 'true'
           - name: VAULT_ADDR
             value: test.syn.tools
-        image: mymirror.io/vault:1.20.4
+        image: mymirror.io/vault:1.21.0
         imagePullPolicy: IfNotPresent
         name: vault-agent
         ports: []
diff --git a/tests/golden/prometheus/argocd/argocd/30_argocd/10_argocd.yaml b/tests/golden/prometheus/argocd/argocd/30_argocd/10_argocd.yaml
index c9a9a14d..32554c0a 100644
--- a/tests/golden/prometheus/argocd/argocd/30_argocd/10_argocd.yaml
+++ b/tests/golden/prometheus/argocd/argocd/30_argocd/10_argocd.yaml
@@ -101,7 +101,7 @@ spec:
             value: 'true'
           - name: VAULT_ADDR
             value: test.syn.tools
-        image: docker.io/hashicorp/vault:1.20.4
+        image: docker.io/hashicorp/vault:1.21.0
         imagePullPolicy: IfNotPresent
         name: vault-agent
         ports: []
diff --git a/tests/golden/syn-teams/argocd/argocd/30_argocd/10_argocd.yaml b/tests/golden/syn-teams/argocd/argocd/30_argocd/10_argocd.yaml
index c9a9a14d..32554c0a 100644
--- a/tests/golden/syn-teams/argocd/argocd/30_argocd/10_argocd.yaml
+++ b/tests/golden/syn-teams/argocd/argocd/30_argocd/10_argocd.yaml
@@ -101,7 +101,7 @@ spec:
             value: 'true'
           - name: VAULT_ADDR
             value: test.syn.tools
-        image: docker.io/hashicorp/vault:1.20.4
+        image: docker.io/hashicorp/vault:1.21.0
         imagePullPolicy: IfNotPresent
         name: vault-agent
         ports: []