diff --git a/opengeodeweb_viewer_schemas.json b/opengeodeweb_viewer_schemas.json
index c39d37d..03a9a6f 100644
--- a/opengeodeweb_viewer_schemas.json
+++ b/opengeodeweb_viewer_schemas.json
@@ -651,8 +651,7 @@
             "block_ids": {
               "type": "array",
               "items": {
-                "type": "integer",
-                "minLength": 1
+                "type": "integer"
               },
               "minItems": 1
             },
@@ -679,8 +678,7 @@
             "block_ids": {
               "type": "array",
               "items": {
-                "type": "integer",
-                "minLength": 1
+                "type": "integer"
               },
               "minItems": 1
             },
@@ -738,8 +736,7 @@
             "block_ids": {
               "type": "array",
               "items": {
-                "type": "integer",
-                "minLength": 1
+                "type": "integer"
               },
               "minItems": 1
             },
@@ -766,8 +763,7 @@
             "block_ids": {
               "type": "array",
               "items": {
-                "type": "integer",
-                "minLength": 1
+                "type": "integer"
               },
               "minItems": 1
             },
@@ -846,8 +842,7 @@
             "block_ids": {
               "type": "array",
               "items": {
-                "type": "integer",
-                "minLength": 1
+                "type": "integer"
               },
               "minItems": 1
             },
@@ -874,8 +869,7 @@
             "block_ids": {
               "type": "array",
               "items": {
-                "type": "integer",
-                "minLength": 1
+                "type": "integer"
               },
               "minItems": 1
             },
@@ -1022,8 +1016,7 @@
             "block_ids": {
               "type": "array",
               "items": {
-                "type": "integer",
-                "minLength": 1
+                "type": "integer"
               },
               "minItems": 1
             },
@@ -1050,8 +1043,7 @@
             "block_ids": {
               "type": "array",
               "items": {
-                "type": "integer",
-                "minLength": 1
+                "type": "integer"
               },
               "minItems": 1
             },
diff --git a/requirements.txt b/requirements.txt
index 9e24baf..065674a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -61,4 +61,3 @@ wslink==1.12.4
 yarl>=1
     # via aiohttp
 
-opengeodeweb-microservice==1.*,>=1.0.6rc1
diff --git a/src/opengeodeweb_viewer/rpc/model/blocks/schemas/color.json b/src/opengeodeweb_viewer/rpc/model/blocks/schemas/color.json
index ba65d79..a775e91 100644
--- a/src/opengeodeweb_viewer/rpc/model/blocks/schemas/color.json
+++ b/src/opengeodeweb_viewer/rpc/model/blocks/schemas/color.json
@@ -9,8 +9,7 @@
     "block_ids": {
       "type": "array",
       "items": {
-        "type": "integer",
-        "minLength": 1
+        "type": "integer"
       },
       "minItems": 1
     },
diff --git a/src/opengeodeweb_viewer/rpc/model/blocks/schemas/visibility.json b/src/opengeodeweb_viewer/rpc/model/blocks/schemas/visibility.json
index 0123260..adb52e2 100644
--- a/src/opengeodeweb_viewer/rpc/model/blocks/schemas/visibility.json
+++ b/src/opengeodeweb_viewer/rpc/model/blocks/schemas/visibility.json
@@ -9,8 +9,7 @@
     "block_ids": {
       "type": "array",
       "items": {
-        "type": "integer",
-        "minLength": 1
+        "type": "integer"
       },
       "minItems": 1
     },
diff --git a/src/opengeodeweb_viewer/rpc/model/corners/schemas/color.json b/src/opengeodeweb_viewer/rpc/model/corners/schemas/color.json
index ba65d79..a775e91 100644
--- a/src/opengeodeweb_viewer/rpc/model/corners/schemas/color.json
+++ b/src/opengeodeweb_viewer/rpc/model/corners/schemas/color.json
@@ -9,8 +9,7 @@
     "block_ids": {
       "type": "array",
       "items": {
-        "type": "integer",
-        "minLength": 1
+        "type": "integer"
       },
       "minItems": 1
     },
diff --git a/src/opengeodeweb_viewer/rpc/model/corners/schemas/visibility.json b/src/opengeodeweb_viewer/rpc/model/corners/schemas/visibility.json
index 0123260..adb52e2 100644
--- a/src/opengeodeweb_viewer/rpc/model/corners/schemas/visibility.json
+++ b/src/opengeodeweb_viewer/rpc/model/corners/schemas/visibility.json
@@ -9,8 +9,7 @@
     "block_ids": {
       "type": "array",
       "items": {
-        "type": "integer",
-        "minLength": 1
+        "type": "integer"
       },
       "minItems": 1
     },
diff --git a/src/opengeodeweb_viewer/rpc/model/lines/schemas/color.json b/src/opengeodeweb_viewer/rpc/model/lines/schemas/color.json
index ba65d79..a775e91 100644
--- a/src/opengeodeweb_viewer/rpc/model/lines/schemas/color.json
+++ b/src/opengeodeweb_viewer/rpc/model/lines/schemas/color.json
@@ -9,8 +9,7 @@
     "block_ids": {
       "type": "array",
       "items": {
-        "type": "integer",
-        "minLength": 1
+        "type": "integer"
       },
       "minItems": 1
     },
diff --git a/src/opengeodeweb_viewer/rpc/model/lines/schemas/visibility.json b/src/opengeodeweb_viewer/rpc/model/lines/schemas/visibility.json
index 0123260..adb52e2 100644
--- a/src/opengeodeweb_viewer/rpc/model/lines/schemas/visibility.json
+++ b/src/opengeodeweb_viewer/rpc/model/lines/schemas/visibility.json
@@ -9,8 +9,7 @@
     "block_ids": {
       "type": "array",
       "items": {
-        "type": "integer",
-        "minLength": 1
+        "type": "integer"
       },
       "minItems": 1
     },
diff --git a/src/opengeodeweb_viewer/rpc/model/surfaces/schemas/color.json b/src/opengeodeweb_viewer/rpc/model/surfaces/schemas/color.json
index ba65d79..a775e91 100644
--- a/src/opengeodeweb_viewer/rpc/model/surfaces/schemas/color.json
+++ b/src/opengeodeweb_viewer/rpc/model/surfaces/schemas/color.json
@@ -9,8 +9,7 @@
     "block_ids": {
       "type": "array",
       "items": {
-        "type": "integer",
-        "minLength": 1
+        "type": "integer"
       },
       "minItems": 1
     },
diff --git a/src/opengeodeweb_viewer/rpc/model/surfaces/schemas/visibility.json b/src/opengeodeweb_viewer/rpc/model/surfaces/schemas/visibility.json
index 0123260..adb52e2 100644
--- a/src/opengeodeweb_viewer/rpc/model/surfaces/schemas/visibility.json
+++ b/src/opengeodeweb_viewer/rpc/model/surfaces/schemas/visibility.json
@@ -9,8 +9,7 @@
     "block_ids": {
       "type": "array",
       "items": {
-        "type": "integer",
-        "minLength": 1
+        "type": "integer"
       },
       "minItems": 1
     },