diff --git a/Makefile b/Makefile
index 15707b08846d5702c41b4e36465f4f8a3243ea87..5297661b53274ee1f5d2122932173a50cbcb0d64 100644
--- a/Makefile
+++ b/Makefile
@@ -13,6 +13,8 @@ TOOLING=$(EMBEDMD_BIN) $(JB_BIN) $(GOJSONTOYAML_BIN) $(JSONNET_BIN) $(JSONNETLIN
 
 JSONNETFMT_ARGS=-n 2 --max-blank-lines 2 --string-style s --comment-style s
 
+KUBE_VERSION?="1.20.0"
+
 all: generate fmt test
 
 .PHONY: clean
@@ -38,8 +40,7 @@ crdschemas: vendor
 
 .PHONY: validate
 validate: crdschemas manifests $(KUBECONFORM_BIN)
-	# Follow-up on https://github.com/instrumenta/kubernetes-json-schema/issues/26 if validations start failing
-	$(KUBECONFORM_BIN) -schema-location 'https://kubernetesjsonschema.dev' -schema-location 'crdschemas/{{ .ResourceKind }}.json' -skip CustomResourceDefinition manifests/
+	$(KUBECONFORM_BIN) -kubernetes-version $(KUBE_VERSION) -schema-location 'default' -schema-location 'crdschemas/{{ .ResourceKind }}.json' -skip CustomResourceDefinition manifests/
 
 .PHONY: fmt
 fmt: $(JSONNETFMT_BIN)
diff --git a/scripts/go.mod b/scripts/go.mod
index 5f3eec9e224209f574833fdd074261788a54b701..07b37e914dc055b64d63ecc96267fb85fa46d441 100644
--- a/scripts/go.mod
+++ b/scripts/go.mod
@@ -7,5 +7,5 @@ require (
 	github.com/campoy/embedmd v1.0.0
 	github.com/google/go-jsonnet v0.17.1-0.20210101181740-31d71aaccda6 // 7 commits after 0.17.0. Needed by jsonnet linter
 	github.com/jsonnet-bundler/jsonnet-bundler v0.4.0
-	github.com/yannh/kubeconform v0.4.2 // indirect
+	github.com/yannh/kubeconform v0.4.7
 )
diff --git a/scripts/go.sum b/scripts/go.sum
index d98867db9c5629d11ede43988215cde54c8d6810..1f96b0edb69687387285c8efad6e329915aa1b9b 100644
--- a/scripts/go.sum
+++ b/scripts/go.sum
@@ -2,6 +2,8 @@ github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc h1:cAKDfWh5Vpd
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf h1:qet1QNfXsQxTZqLG4oE62mJzwPIB8+Tee4RNCL9ulrY=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
+github.com/beevik/etree v1.1.0 h1:T0xke/WvNtMoCqgzPhkX2r4rjY3GDZFi+FjpRZY2Jbs=
+github.com/beevik/etree v1.1.0/go.mod h1:r8Aw8JqVegEf0w2fDnATrX9VpkMcyFeM0FhwO62wh+A=
 github.com/brancz/gojsontoyaml v0.0.0-20200602132005-3697ded27e8c h1:hb6WqfcKQZlNx/vahy51SaIvKnoXD5609Nm0PC4msEM=
 github.com/brancz/gojsontoyaml v0.0.0-20200602132005-3697ded27e8c/go.mod h1:+00lOjYXPgMfxHVPvg9GDtc3BX5Xh5aFpB4gMB8gfMo=
 github.com/campoy/embedmd v1.0.0 h1:V4kI2qTJJLf4J29RzI/MAt2c3Bl4dQSYPuflzwFH2hY=
@@ -22,6 +24,7 @@ github.com/jsonnet-bundler/jsonnet-bundler v0.4.0 h1:4BKZ6LDqPc2wJDmaKnmYD/vDjUp
 github.com/jsonnet-bundler/jsonnet-bundler v0.4.0/go.mod h1:/by7P/OoohkI3q4CgSFqcoFsVY+IaNbzOVDknEsKDeU=
 github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
+github.com/kr/pty v1.1.1 h1:VkoXIwSboBpnk99O/KFauAEILuNHv5DVFKZMBN/gUgw=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
@@ -38,6 +41,7 @@ github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZb
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/sergi/go-diff v1.1.0 h1:we8PVUC3FE2uYfodKH/nBHMSetSfHDR6scGdBi+erh0=
 github.com/sergi/go-diff v1.1.0/go.mod h1:STckp+ISIX8hZLjrqAeVduY0gWCT9IjLuqbuNXdaHfM=
+github.com/stretchr/objx v0.1.0 h1:4G4v2dO3VZwixGIRoQ5Lfboy6nUhCyYzaqnIAPPhYs4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
@@ -50,6 +54,8 @@ github.com/xeipuuv/gojsonschema v1.2.0 h1:LhYJRs+L4fBtjZUfuSZIKGeVu0QRy8e5Xi7D17
 github.com/xeipuuv/gojsonschema v1.2.0/go.mod h1:anYRn/JVcOK2ZgGU+IjEV4nwlhoK5sQluxsYJ78Id3Y=
 github.com/yannh/kubeconform v0.4.2 h1:8ve/dz6ns9tT5efR1Qfn8569JkenPFqnWcVWGz3lqPw=
 github.com/yannh/kubeconform v0.4.2/go.mod h1:Ysf3RSreh2rX8IJsVt/uT3Um/U3e3ykx6Fcz8nCdskM=
+github.com/yannh/kubeconform v0.4.7 h1:ExAjZYd6D0WnG/Eq/IRxvTebPbARh6e6M96Pq8Xy5u0=
+github.com/yannh/kubeconform v0.4.7/go.mod h1:lhkEiaDOtSewHGGZ8iR2iiTC0CSnR7xbMEtyL4bm4rE=
 golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190310054646-10058d7d4faa/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191026070338-33540a1f6037 h1:YyJpGZS1sBuBCzLAR1VEpK193GlqGZbnPFnPV/5Rsb4=