diff --git a/setup.py b/setup.py
index 493100f..26d1414 100644
--- a/setup.py
+++ b/setup.py
@@ -18,7 +18,7 @@
         'jsonref',
         'pyyaml',
         'requests[security]>=2.9',
-        'jsonschema<=4.9.1',  # c.f. https://github.com/yadage/yadage-schemas/issues/38
+        'jsonschema>=4.10.0',  # c.f. https://github.com/yadage/yadage-schemas/issues/38
         'click',
         'six>=1.4.0',  # six.moves added in six v1.4.0
         'importlib-resources>=5.10;python_version<"3.9"' # for accessing package filepaths
diff --git a/yadageschemas/packtivity/environment/docker-enc-schema.json b/yadageschemas/packtivity/environment/docker-enc-schema.json
index 66d681d..3b2bacd 100644
--- a/yadageschemas/packtivity/environment/docker-enc-schema.json
+++ b/yadageschemas/packtivity/environment/docker-enc-schema.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "http://json-schema.org/draft-04/schema#",
+  "$schema": "http://json-schema.org/draft-06/schema#",
   "type": "object",
   "title": "Docker Encapsulated Environment",
   "additionalProperties": false,
diff --git a/yadageschemas/packtivity/environment/localproc-schema.json b/yadageschemas/packtivity/environment/localproc-schema.json
index 5edc7d2..f75bb94 100644
--- a/yadageschemas/packtivity/environment/localproc-schema.json
+++ b/yadageschemas/packtivity/environment/localproc-schema.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "http://json-schema.org/draft-04/schema#",
+  "$schema": "http://json-schema.org/draft-06/schema#",
   "type": "object",
   "title": "Local Process Environment for Testing",
   "properties": {
diff --git a/yadageschemas/packtivity/environment/manual-instructions-env-schema.json b/yadageschemas/packtivity/environment/manual-instructions-env-schema.json
index eb2b169..7605058 100644
--- a/yadageschemas/packtivity/environment/manual-instructions-env-schema.json
+++ b/yadageschemas/packtivity/environment/manual-instructions-env-schema.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "http://json-schema.org/draft-04/schema#",
+  "$schema": "http://json-schema.org/draft-06/schema#",
   "type": "object",
   "title": "Manual Instructions Environment",
   "additionalProperties": false,
diff --git a/yadageschemas/packtivity/environment/noop-env-schema.json b/yadageschemas/packtivity/environment/noop-env-schema.json
index 14f457e..3e0f7f8 100644
--- a/yadageschemas/packtivity/environment/noop-env-schema.json
+++ b/yadageschemas/packtivity/environment/noop-env-schema.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "http://json-schema.org/draft-04/schema#",
+  "$schema": "http://json-schema.org/draft-06/schema#",
   "type": "object",
   "title": "Noop Environment for Testing",
   "properties": {
diff --git a/yadageschemas/packtivity/packtivity-schema.json b/yadageschemas/packtivity/packtivity-schema.json
index fa30a63..fb4b341 100644
--- a/yadageschemas/packtivity/packtivity-schema.json
+++ b/yadageschemas/packtivity/packtivity-schema.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "http://json-schema.org/draft-04/schema#",
+  "$schema": "http://json-schema.org/draft-06/schema#",
   "type": "object",
   "title": "Packtivity Meta Description",
   "additionalProperties": false,
diff --git a/yadageschemas/packtivity/process/manual-instructions-proc-schema.json b/yadageschemas/packtivity/process/manual-instructions-proc-schema.json
index 484ce52..d404f2d 100644
--- a/yadageschemas/packtivity/process/manual-instructions-proc-schema.json
+++ b/yadageschemas/packtivity/process/manual-instructions-proc-schema.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "http://json-schema.org/draft-04/schema#",
+  "$schema": "http://json-schema.org/draft-06/schema#",
   "type": "object",
   "title": "Manual Instructions Process",
   "additionalProperties": false,
diff --git a/yadageschemas/packtivity/process/scriptproc-schema.json b/yadageschemas/packtivity/process/scriptproc-schema.json
index 54d6686..18a6b51 100644
--- a/yadageschemas/packtivity/process/scriptproc-schema.json
+++ b/yadageschemas/packtivity/process/scriptproc-schema.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "http://json-schema.org/draft-04/schema#",
+  "$schema": "http://json-schema.org/draft-06/schema#",
   "type": "object",
   "title": "String Interpolated Script",
   "additionalProperties": false,
diff --git a/yadageschemas/packtivity/process/stringinterp-schema.json b/yadageschemas/packtivity/process/stringinterp-schema.json
index 14dc12b..dea62f6 100644
--- a/yadageschemas/packtivity/process/stringinterp-schema.json
+++ b/yadageschemas/packtivity/process/stringinterp-schema.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "http://json-schema.org/draft-04/schema#",
+  "$schema": "http://json-schema.org/draft-06/schema#",
   "type": "object",
   "title": "String Interpolated Command",
   "additionalProperties": false,
diff --git a/yadageschemas/packtivity/publisher/constant-pub-schema.json b/yadageschemas/packtivity/publisher/constant-pub-schema.json
index 8478eee..a843603 100644
--- a/yadageschemas/packtivity/publisher/constant-pub-schema.json
+++ b/yadageschemas/packtivity/publisher/constant-pub-schema.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "http://json-schema.org/draft-04/schema#",
+  "$schema": "http://json-schema.org/draft-06/schema#",
   "type": "object",
   "title": "Constant Publisher",
   "additionalProperties": false,
diff --git a/yadageschemas/packtivity/publisher/fromglob-pub-schema.json b/yadageschemas/packtivity/publisher/fromglob-pub-schema.json
index 65b8a13..26cf555 100644
--- a/yadageschemas/packtivity/publisher/fromglob-pub-schema.json
+++ b/yadageschemas/packtivity/publisher/fromglob-pub-schema.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "http://json-schema.org/draft-04/schema#",
+  "$schema": "http://json-schema.org/draft-06/schema#",
   "type": "object",
   "title": "Glob Publisher",
   "additionalProperties": false,
diff --git a/yadageschemas/packtivity/publisher/frompar-pub-schema.json b/yadageschemas/packtivity/publisher/frompar-pub-schema.json
index c3ad5fe..726442a 100644
--- a/yadageschemas/packtivity/publisher/frompar-pub-schema.json
+++ b/yadageschemas/packtivity/publisher/frompar-pub-schema.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "http://json-schema.org/draft-04/schema#",
+  "$schema": "http://json-schema.org/draft-06/schema#",
   "type": "object",
   "title": "Parameter Publisher",
   "additionalProperties": false,
diff --git a/yadageschemas/packtivity/publisher/fromparjq-pub-schema.json b/yadageschemas/packtivity/publisher/fromparjq-pub-schema.json
index 770893e..43b913c 100644
--- a/yadageschemas/packtivity/publisher/fromparjq-pub-schema.json
+++ b/yadageschemas/packtivity/publisher/fromparjq-pub-schema.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "http://json-schema.org/draft-04/schema#",
+  "$schema": "http://json-schema.org/draft-06/schema#",
   "type": "object",
   "title": "Parameter Publisher",
   "additionalProperties": false,
diff --git a/yadageschemas/packtivity/publisher/fromyaml-pub-schema.json b/yadageschemas/packtivity/publisher/fromyaml-pub-schema.json
index a660565..f25f5d3 100644
--- a/yadageschemas/packtivity/publisher/fromyaml-pub-schema.json
+++ b/yadageschemas/packtivity/publisher/fromyaml-pub-schema.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "http://json-schema.org/draft-04/schema#",
+  "$schema": "http://json-schema.org/draft-06/schema#",
   "type": "object",
   "title": "YAML Publisher",
   "additionalProperties": false,
diff --git a/yadageschemas/packtivity/publisher/interpolated-pub-schema.json b/yadageschemas/packtivity/publisher/interpolated-pub-schema.json
index a130f63..7ab9f20 100644
--- a/yadageschemas/packtivity/publisher/interpolated-pub-schema.json
+++ b/yadageschemas/packtivity/publisher/interpolated-pub-schema.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "http://json-schema.org/draft-04/schema#",
+  "$schema": "http://json-schema.org/draft-06/schema#",
   "type": "object",
   "title": "Simple Interpolated Publisher",
   "additionalProperties": false,
diff --git a/yadageschemas/packtivity/publisher/manual-instructions-pub-schema.json b/yadageschemas/packtivity/publisher/manual-instructions-pub-schema.json
index e631853..ee2c50a 100644
--- a/yadageschemas/packtivity/publisher/manual-instructions-pub-schema.json
+++ b/yadageschemas/packtivity/publisher/manual-instructions-pub-schema.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "http://json-schema.org/draft-04/schema#",
+  "$schema": "http://json-schema.org/draft-06/schema#",
   "type": "object",
   "title": "Manual Instructions Publisher",
   "additionalProperties": false,
diff --git a/yadageschemas/validator.py b/yadageschemas/validator.py
index 0dcaafd..ffcfed8 100644
--- a/yadageschemas/validator.py
+++ b/yadageschemas/validator.py
@@ -3,11 +3,11 @@
 
 from .dialects import raw_with_defaults
 assert raw_with_defaults
-from jsonschema import Draft4Validator
+from jsonschema import Draft6Validator
 
 def validator(schema_name,schemadir):
     schema, resolver = schema_and_refresolver(schema_name,schemadir)
-    return Draft4Validator(schema, resolver = resolver)
+    return Draft6Validator(schema, resolver = resolver)
 
 def validate_spec(data, validopts):
     return validator(**validopts).validate(data)
diff --git a/yadageschemas/yadage/predicates/exprfulfilled-schema.json b/yadageschemas/yadage/predicates/exprfulfilled-schema.json
index c72357b..ff71fa0 100644
--- a/yadageschemas/yadage/predicates/exprfulfilled-schema.json
+++ b/yadageschemas/yadage/predicates/exprfulfilled-schema.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "http://json-schema.org/draft-04/schema#",
+  "$schema": "http://json-schema.org/draft-06/schema#",
   "type": "object",
   "title": "JSONPath ready predicate",
   "additionalProperties": false,
diff --git a/yadageschemas/yadage/predicates/jsonpathready-schema.json b/yadageschemas/yadage/predicates/jsonpathready-schema.json
index f6bf5c2..45089d9 100644
--- a/yadageschemas/yadage/predicates/jsonpathready-schema.json
+++ b/yadageschemas/yadage/predicates/jsonpathready-schema.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "http://json-schema.org/draft-04/schema#",
+  "$schema": "http://json-schema.org/draft-06/schema#",
   "type": "object",
   "title": "JSONPath ready predicate",
   "additionalProperties": false,
diff --git a/yadageschemas/yadage/scheduler/cases.json b/yadageschemas/yadage/scheduler/cases.json
index 085376b..a8127e2 100644
--- a/yadageschemas/yadage/scheduler/cases.json
+++ b/yadageschemas/yadage/scheduler/cases.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "http://json-schema.org/draft-04/schema#",
+  "$schema": "http://json-schema.org/draft-06/schema#",
   "type":"array",
   "items":{
     "type":"object",
diff --git a/yadageschemas/yadage/scheduler/jq-stage-schema.json b/yadageschemas/yadage/scheduler/jq-stage-schema.json
index 93bc608..98e4e5d 100644
--- a/yadageschemas/yadage/scheduler/jq-stage-schema.json
+++ b/yadageschemas/yadage/scheduler/jq-stage-schema.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "http://json-schema.org/draft-04/schema#",
+  "$schema": "http://json-schema.org/draft-06/schema#",
   "type": "object",
   "title": "jq Scheduler",
   "additionalProperties": true,
diff --git a/yadageschemas/yadage/scheduler/multistep-stage-schema.json b/yadageschemas/yadage/scheduler/multistep-stage-schema.json
index c254e42..b2f3284 100644
--- a/yadageschemas/yadage/scheduler/multistep-stage-schema.json
+++ b/yadageschemas/yadage/scheduler/multistep-stage-schema.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "http://json-schema.org/draft-04/schema#",
+  "$schema": "http://json-schema.org/draft-06/schema#",
   "type": "object",
   "title": "Multiple Step Scheduler",
   "additionalProperties": false,
diff --git a/yadageschemas/yadage/scheduler/parameterselection.json b/yadageschemas/yadage/scheduler/parameterselection.json
index 4f7bc4d..224c4bb 100644
--- a/yadageschemas/yadage/scheduler/parameterselection.json
+++ b/yadageschemas/yadage/scheduler/parameterselection.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "http://json-schema.org/draft-04/schema#",
+  "$schema": "http://json-schema.org/draft-06/schema#",
   "type":"array",
   "title": "Parameter Selection",
   "items":{
diff --git a/yadageschemas/yadage/scheduler/singlestep-stage-schema.json b/yadageschemas/yadage/scheduler/singlestep-stage-schema.json
index 9805210..9d2071f 100644
--- a/yadageschemas/yadage/scheduler/singlestep-stage-schema.json
+++ b/yadageschemas/yadage/scheduler/singlestep-stage-schema.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "http://json-schema.org/draft-04/schema#",
+  "$schema": "http://json-schema.org/draft-06/schema#",
   "type": "object",
   "title": "Single Step Scheduler",
   "additionalProperties": false,
diff --git a/yadageschemas/yadage/scheduler/value_registration.json b/yadageschemas/yadage/scheduler/value_registration.json
index 70090b1..ef26520 100644
--- a/yadageschemas/yadage/scheduler/value_registration.json
+++ b/yadageschemas/yadage/scheduler/value_registration.json
@@ -1,4 +1,4 @@
 {
-  "$schema": "http://json-schema.org/draft-04/schema#",
+  "$schema": "http://json-schema.org/draft-06/schema#",
   "type": "object"
 }
diff --git a/yadageschemas/yadage/stage-schema.json b/yadageschemas/yadage/stage-schema.json
index b1b1792..809def0 100644
--- a/yadageschemas/yadage/stage-schema.json
+++ b/yadageschemas/yadage/stage-schema.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "http://json-schema.org/draft-04/schema#",
+  "$schema": "http://json-schema.org/draft-06/schema#",
   "type": "object",
   "title": "Yadage Stage",
   "additionalProperties": false,
@@ -8,7 +8,7 @@
       "type": "string"
     },
     "dependencies": {
-      "type": "object",
+      "type": "array",
       "oneOf":[
         {"$ref":"predicates/jsonpathready-schema.json#"},
         {"$ref":"predicates/exprfulfilled-schema.json#"}
diff --git a/yadageschemas/yadage/workflow-schema.json b/yadageschemas/yadage/workflow-schema.json
index dffd0cc..60f5822 100644
--- a/yadageschemas/yadage/workflow-schema.json
+++ b/yadageschemas/yadage/workflow-schema.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "http://json-schema.org/draft-04/schema#",
+  "$schema": "http://json-schema.org/draft-06/schema#",
   "type": "object",
   "title": "Yadage Workflow",
   "additionalProperties": false,