diff --git a/deploy/charts/cert-manager/templates/cainjector-poddisruptionbudget.yaml b/deploy/charts/cert-manager/templates/cainjector-poddisruptionbudget.yaml
index f080b753a5a..6a7d60913fd 100644
--- a/deploy/charts/cert-manager/templates/cainjector-poddisruptionbudget.yaml
+++ b/deploy/charts/cert-manager/templates/cainjector-poddisruptionbudget.yaml
@@ -17,10 +17,13 @@ spec:
       app.kubernetes.io/instance: {{ .Release.Name }}
       app.kubernetes.io/component: "cainjector"
 
-  {{- with .Values.cainjector.podDisruptionBudget.minAvailable }}
-  minAvailable: {{ . }}
+  {{- if not (or (hasKey .Values.cainjector.podDisruptionBudget "minAvailable") (hasKey .Values.cainjector.podDisruptionBudget "maxUnavailable")) }}
+  minAvailable: 1 # Default value because minAvailable and maxUnavailable are not set
   {{- end }}
-  {{- with .Values.cainjector.podDisruptionBudget.maxUnavailable }}
-  maxUnavailable: {{ . }}
+  {{- if hasKey .Values.cainjector.podDisruptionBudget "minAvailable" }}
+  minAvailable: {{ .Values.cainjector.podDisruptionBudget.minAvailable }}
+  {{- end }}
+  {{- if hasKey .Values.cainjector.podDisruptionBudget "maxUnavailable" }}
+  maxUnavailable: {{ .Values.cainjector.podDisruptionBudget.maxUnavailable }}
   {{- end }}
 {{- end }}
diff --git a/deploy/charts/cert-manager/templates/poddisruptionbudget.yaml b/deploy/charts/cert-manager/templates/poddisruptionbudget.yaml
index dab75ce6881..ae71eed29cf 100644
--- a/deploy/charts/cert-manager/templates/poddisruptionbudget.yaml
+++ b/deploy/charts/cert-manager/templates/poddisruptionbudget.yaml
@@ -17,10 +17,13 @@ spec:
       app.kubernetes.io/instance: {{ .Release.Name }}
       app.kubernetes.io/component: "controller"
 
-  {{- with .Values.podDisruptionBudget.minAvailable }}
-  minAvailable: {{ . }}
+  {{- if not (or (hasKey .Values.podDisruptionBudget "minAvailable") (hasKey .Values.podDisruptionBudget "maxUnavailable")) }}
+  minAvailable: 1 # Default value because minAvailable and maxUnavailable are not set
   {{- end }}
-  {{- with .Values.podDisruptionBudget.maxUnavailable }}
-  maxUnavailable: {{ . }}
+  {{- if hasKey .Values.podDisruptionBudget "minAvailable" }}
+  minAvailable: {{ .Values.podDisruptionBudget.minAvailable }}
+  {{- end }}
+  {{- if hasKey .Values.podDisruptionBudget "maxUnavailable" }}
+  maxUnavailable: {{ .Values.podDisruptionBudget.maxUnavailable }}
   {{- end }}
 {{- end }}
diff --git a/deploy/charts/cert-manager/templates/webhook-poddisruptionbudget.yaml b/deploy/charts/cert-manager/templates/webhook-poddisruptionbudget.yaml
index c8a357cb16a..ab2a48109e4 100644
--- a/deploy/charts/cert-manager/templates/webhook-poddisruptionbudget.yaml
+++ b/deploy/charts/cert-manager/templates/webhook-poddisruptionbudget.yaml
@@ -17,10 +17,13 @@ spec:
       app.kubernetes.io/instance: {{ .Release.Name }}
       app.kubernetes.io/component: "webhook"
 
-  {{- with .Values.webhook.podDisruptionBudget.minAvailable }}
-  minAvailable: {{ . }}
+  {{- if not (or (hasKey .Values.webhook.podDisruptionBudget "minAvailable") (hasKey .Values.webhook.podDisruptionBudget "maxUnavailable")) }}
+  minAvailable: 1 # Default value because minAvailable and maxUnavailable are not set
   {{- end }}
-  {{- with .Values.webhook.podDisruptionBudget.maxUnavailable }}
-  maxUnavailable: {{ . }}
+  {{- if hasKey .Values.webhook.podDisruptionBudget "minAvailable" }}
+  minAvailable: {{ .Values.webhook.podDisruptionBudget.minAvailable }}
+  {{- end }}
+  {{- if hasKey .Values.webhook.podDisruptionBudget "maxUnavailable" }}
+  maxUnavailable: {{ .Values.webhook.podDisruptionBudget.maxUnavailable }}
   {{- end }}
 {{- end }}
diff --git a/deploy/charts/cert-manager/values.yaml b/deploy/charts/cert-manager/values.yaml
index 54018f7d68b..d0f7c78181e 100644
--- a/deploy/charts/cert-manager/values.yaml
+++ b/deploy/charts/cert-manager/values.yaml
@@ -63,11 +63,11 @@ strategy: {}
 podDisruptionBudget:
   enabled: false
 
-  minAvailable: 1
-  # maxUnavailable: 1
-
   # minAvailable and maxUnavailable can either be set to an integer (e.g. 1)
   # or a percentage value (e.g. 25%)
+  # if neither minAvailable or maxUnavailable is set, we default to `minAvailable: 1`
+  # minAvailable: 1
+  # maxUnavailable: 1
 
 # Comma separated list of feature gates that should be enabled on the
 # controller pod.
@@ -305,11 +305,11 @@ webhook:
   podDisruptionBudget:
     enabled: false
 
-    minAvailable: 1
-    # maxUnavailable: 1
-
     # minAvailable and maxUnavailable can either be set to an integer (e.g. 1)
     # or a percentage value (e.g. 25%)
+    # if neither minAvailable or maxUnavailable is set, we default to `minAvailable: 1`
+    # minAvailable: 1
+    # maxUnavailable: 1
 
   # Container Security Context to be set on the webhook component container
   # ref: https://kubernetes.io/docs/tasks/configure-pod-container/security-context/
@@ -490,11 +490,11 @@ cainjector:
   podDisruptionBudget:
     enabled: false
 
-    minAvailable: 1
-    # maxUnavailable: 1
-
     # minAvailable and maxUnavailable can either be set to an integer (e.g. 1)
     # or a percentage value (e.g. 25%)
+    # if neither minAvailable or maxUnavailable is set, we default to `minAvailable: 1`
+    # minAvailable: 1
+    # maxUnavailable: 1
 
   # Container Security Context to be set on the cainjector component container
   # ref: https://kubernetes.io/docs/tasks/configure-pod-container/security-context/