diff --git a/config/crd/kustomization.yaml b/config/crd/kustomization.yaml
index 809e0ad..1553b76 100644
--- a/config/crd/kustomization.yaml
+++ b/config/crd/kustomization.yaml
@@ -26,6 +26,12 @@ patches:
     version: v1beta1
     kind: CustomResourceDefinition
     name: cassandrabackups.cassandra.k8ssandra.io
+- path: patches/backup_validation_patch.json
+  target:
+    group: apiextensions.k8s.io
+    version: v1beta1
+    kind: CustomResourceDefinition
+    name: cassandrabackups.cassandra.k8ssandra.io
 
 
 # the following config is for teaching kustomize how to do kustomization for CRDs.
diff --git a/config/crd/patches/backup_validation_patch.json b/config/crd/patches/backup_validation_patch.json
new file mode 100644
index 0000000..c4403d4
--- /dev/null
+++ b/config/crd/patches/backup_validation_patch.json
@@ -0,0 +1,6 @@
+[
+    {
+        "op": "remove",
+        "path": "/spec/validation/openAPIV3Schema/properties/status/properties/cassdcTemplateSpec/properties/spec/properties/podTemplateSpec/properties/spec/properties/volumes/items/properties/configMap"
+    }
+]
diff --git a/go.mod b/go.mod
index 6ca4b3a..85092c7 100644
--- a/go.mod
+++ b/go.mod
@@ -14,12 +14,13 @@ require (
 	golang.org/x/text v0.3.4 // indirect
 	google.golang.org/genproto v0.0.0-20201214200347-8c77b98c765d // indirect
 	google.golang.org/grpc v1.34.0
+	google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.1.0 // indirect
 	google.golang.org/protobuf v1.25.0
 	k8s.io/api v0.18.6
 	k8s.io/apimachinery v0.18.6
 	k8s.io/client-go v12.0.0+incompatible
-	sigs.k8s.io/controller-runtime v0.6.2
 	k8s.io/kubernetes v1.18.6
+	sigs.k8s.io/controller-runtime v0.6.2
 )
 
 replace (
diff --git a/go.sum b/go.sum
index 228ead0..698e524 100644
--- a/go.sum
+++ b/go.sum
@@ -1342,6 +1342,9 @@ google.golang.org/grpc v1.26.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8
 google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
 google.golang.org/grpc v1.34.0 h1:raiipEjMOIC/TO2AvyTxP25XFdLxNIBwzDh3FM3XztI=
 google.golang.org/grpc v1.34.0/go.mod h1:WotjhfgOW/POjDeRt8vscBtXq+2VjORFy659qA51WJ8=
+google.golang.org/grpc v1.35.0 h1:TwIQcH3es+MojMVojxxfQ3l3OF2KzlRxML2xZq0kRo8=
+google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.1.0 h1:M1YKkFIboKNieVO5DLUEVzQfGwJD30Nv2jfUgzb5UcE=
+google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.1.0/go.mod h1:6Kw0yEErY5E/yWrBtf03jp27GLLJujG4z/JK95pnjjw=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
diff --git a/pkg/pb/medusa.pb.go b/pkg/pb/medusa.pb.go
index 12fab3b..e51998e 100644
--- a/pkg/pb/medusa.pb.go
+++ b/pkg/pb/medusa.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0-devel
-// 	protoc        v3.12.1
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.12.4
 // source: pkg/pb/medusa.proto
 
 package pb
diff --git a/pkg/pb/medusa_grpc.pb.go b/pkg/pb/medusa_grpc.pb.go
index 8ba3850..25d487e 100644
--- a/pkg/pb/medusa_grpc.pb.go
+++ b/pkg/pb/medusa_grpc.pb.go
@@ -11,6 +11,7 @@ import (
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.32.0 or later.
 const _ = grpc.SupportPackageIsVersion7
 
 // MedusaClient is the client API for Medusa service.
@@ -104,7 +105,7 @@ type UnsafeMedusaServer interface {
 }
 
 func RegisterMedusaServer(s grpc.ServiceRegistrar, srv MedusaServer) {
-	s.RegisterService(&_Medusa_serviceDesc, srv)
+	s.RegisterService(&Medusa_ServiceDesc, srv)
 }
 
 func _Medusa_Backup_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
@@ -179,7 +180,10 @@ func _Medusa_GetBackups_Handler(srv interface{}, ctx context.Context, dec func(i
 	return interceptor(ctx, in, info, handler)
 }
 
-var _Medusa_serviceDesc = grpc.ServiceDesc{
+// Medusa_ServiceDesc is the grpc.ServiceDesc for Medusa service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var Medusa_ServiceDesc = grpc.ServiceDesc{
 	ServiceName: "Medusa",
 	HandlerType: (*MedusaServer)(nil),
 	Methods: []grpc.MethodDesc{