diff --git a/lib/spack/spack/schema/bootstrap.py b/lib/spack/spack/schema/bootstrap.py
index bd3c6630fb0..e77001e8543 100644
--- a/lib/spack/spack/schema/bootstrap.py
+++ b/lib/spack/spack/schema/bootstrap.py
@@ -39,7 +39,7 @@
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack bootstrap configuration file schema',
     'type': 'object',
     'additionalProperties': False,
diff --git a/lib/spack/spack/schema/buildcache_spec.py b/lib/spack/spack/schema/buildcache_spec.py
index 563235c3111..a72c70a59c4 100644
--- a/lib/spack/spack/schema/buildcache_spec.py
+++ b/lib/spack/spack/schema/buildcache_spec.py
@@ -11,7 +11,7 @@
 import spack.schema.spec
 
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack buildcache specfile schema',
     'type': 'object',
     'additionalProperties': False,
diff --git a/lib/spack/spack/schema/cdash.py b/lib/spack/spack/schema/cdash.py
index 41c0146b1d8..b2361596294 100644
--- a/lib/spack/spack/schema/cdash.py
+++ b/lib/spack/spack/schema/cdash.py
@@ -28,7 +28,7 @@
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack cdash configuration file schema',
     'type': 'object',
     'additionalProperties': False,
diff --git a/lib/spack/spack/schema/compilers.py b/lib/spack/spack/schema/compilers.py
index 91ace05f4e3..df320364913 100644
--- a/lib/spack/spack/schema/compilers.py
+++ b/lib/spack/spack/schema/compilers.py
@@ -84,7 +84,7 @@
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack compiler configuration file schema',
     'type': 'object',
     'additionalProperties': False,
diff --git a/lib/spack/spack/schema/config.py b/lib/spack/spack/schema/config.py
index 0cf533eb18c..801c6d5ea5a 100644
--- a/lib/spack/spack/schema/config.py
+++ b/lib/spack/spack/schema/config.py
@@ -110,7 +110,7 @@
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack core configuration file schema',
     'type': 'object',
     'additionalProperties': False,
diff --git a/lib/spack/spack/schema/database_index.py b/lib/spack/spack/schema/database_index.py
index 105f6ad6a30..7a6143d5557 100644
--- a/lib/spack/spack/schema/database_index.py
+++ b/lib/spack/spack/schema/database_index.py
@@ -14,7 +14,7 @@
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack spec schema',
     'type': 'object',
     'required': ['database'],
diff --git a/lib/spack/spack/schema/env.py b/lib/spack/spack/schema/env.py
index de6a5d9568e..5a9bfe9aa1c 100644
--- a/lib/spack/spack/schema/env.py
+++ b/lib/spack/spack/schema/env.py
@@ -52,7 +52,7 @@
 projections_scheme = spack.schema.projections.properties['projections']
 
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack environment file schema',
     'type': 'object',
     'additionalProperties': False,
diff --git a/lib/spack/spack/schema/gitlab_ci.py b/lib/spack/spack/schema/gitlab_ci.py
index d6d8f564a3e..4e5abe397bc 100644
--- a/lib/spack/spack/schema/gitlab_ci.py
+++ b/lib/spack/spack/schema/gitlab_ci.py
@@ -153,7 +153,7 @@
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack gitlab-ci configuration file schema',
     'type': 'object',
     'additionalProperties': False,
diff --git a/lib/spack/spack/schema/merged.py b/lib/spack/spack/schema/merged.py
index 11db4f78df7..bbc288cb7a6 100644
--- a/lib/spack/spack/schema/merged.py
+++ b/lib/spack/spack/schema/merged.py
@@ -40,7 +40,7 @@
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack merged configuration file schema',
     'type': 'object',
     'additionalProperties': False,
diff --git a/lib/spack/spack/schema/mirrors.py b/lib/spack/spack/schema/mirrors.py
index 5e66f9306cd..38cb126d6c5 100644
--- a/lib/spack/spack/schema/mirrors.py
+++ b/lib/spack/spack/schema/mirrors.py
@@ -37,7 +37,7 @@
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack mirror configuration file schema',
     'type': 'object',
     'additionalProperties': False,
diff --git a/lib/spack/spack/schema/modules.py b/lib/spack/spack/schema/modules.py
index 90755f55888..4b30ae582f3 100644
--- a/lib/spack/spack/schema/modules.py
+++ b/lib/spack/spack/schema/modules.py
@@ -219,7 +219,7 @@
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack module file configuration file schema',
     'type': 'object',
     'additionalProperties': False,
diff --git a/lib/spack/spack/schema/packages.py b/lib/spack/spack/schema/packages.py
index 86aabc6649c..55ed1bbf3ba 100644
--- a/lib/spack/spack/schema/packages.py
+++ b/lib/spack/spack/schema/packages.py
@@ -154,7 +154,7 @@ def deprecate_paths_and_modules(instance, deprecated_properties):
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack package configuration file schema',
     'type': 'object',
     'additionalProperties': False,
diff --git a/lib/spack/spack/schema/projections.py b/lib/spack/spack/schema/projections.py
index cab512fe3b9..7623a5be6dd 100644
--- a/lib/spack/spack/schema/projections.py
+++ b/lib/spack/spack/schema/projections.py
@@ -25,7 +25,7 @@
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack view projection configuration file schema',
     'type': 'object',
     'additionalProperties': False,
diff --git a/lib/spack/spack/schema/repos.py b/lib/spack/spack/schema/repos.py
index 44cf688a48e..d16c1b07bdf 100644
--- a/lib/spack/spack/schema/repos.py
+++ b/lib/spack/spack/schema/repos.py
@@ -22,7 +22,7 @@
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack repository configuration file schema',
     'type': 'object',
     'additionalProperties': False,
diff --git a/lib/spack/spack/schema/spec.py b/lib/spack/spack/schema/spec.py
index 3dd84553f7a..5d2618bd80e 100644
--- a/lib/spack/spack/schema/spec.py
+++ b/lib/spack/spack/schema/spec.py
@@ -192,7 +192,7 @@
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack spec schema',
     'type': 'object',
     'additionalProperties': False,
diff --git a/lib/spack/spack/schema/upstreams.py b/lib/spack/spack/schema/upstreams.py
index 7d721332eb3..5075059d586 100644
--- a/lib/spack/spack/schema/upstreams.py
+++ b/lib/spack/spack/schema/upstreams.py
@@ -31,7 +31,7 @@
 
 #: Full schema with metadata
 schema = {
-    '$schema': 'http://json-schema.org/schema#',
+    '$schema': 'http://json-schema.org/draft-07/schema#',
     'title': 'Spack core configuration file schema',
     'type': 'object',
     'additionalProperties': False,