diff --git a/src/blocks/html/block.json b/src/blocks/html/block.json
index 5339e8df..8dc8f380 100644
--- a/src/blocks/html/block.json
+++ b/src/blocks/html/block.json
@@ -20,7 +20,9 @@
 		}
 	},
 	"supports": {
-		"html": false
+		"html": false,
+		"align": true,
+		"alignWide": true
 	},
 	"textdomain": "inseri-core",
 	"editorScript": "file:./index.js",
diff --git a/src/blocks/iiifViewer/block.json b/src/blocks/iiifViewer/block.json
index 3aac6898..bfa54fc7 100644
--- a/src/blocks/iiifViewer/block.json
+++ b/src/blocks/iiifViewer/block.json
@@ -32,7 +32,9 @@
 		}
 	},
 	"supports": {
-		"html": false
+		"html": false,
+		"align": true,
+		"alignWide": true
 	},
 	"textdomain": "inseri-core",
 	"editorScript": "file:./index.js",
diff --git a/src/blocks/image/block.json b/src/blocks/image/block.json
index a4569672..09b8c5e5 100644
--- a/src/blocks/image/block.json
+++ b/src/blocks/image/block.json
@@ -37,7 +37,9 @@
 		}
 	},
 	"supports": {
-		"html": false
+		"html": false,
+		"align": true,
+		"alignWide": true
 	},
 	"textdomain": "inseri-core",
 	"editorScript": "file:./index.js",
diff --git a/src/blocks/plotly/block.json b/src/blocks/plotly/block.json
index a70b2c4e..a2477c81 100644
--- a/src/blocks/plotly/block.json
+++ b/src/blocks/plotly/block.json
@@ -40,7 +40,9 @@
 		}
 	},
 	"supports": {
-		"html": false
+		"html": false,
+		"align": true,
+		"alignWide": true
 	},
 	"textdomain": "inseri-core",
 	"editorScript": "file:./index.js",
diff --git a/src/blocks/python/block.json b/src/blocks/python/block.json
index 4ab260be..328b2196 100644
--- a/src/blocks/python/block.json
+++ b/src/blocks/python/block.json
@@ -56,7 +56,9 @@
 		}
 	},
 	"supports": {
-		"html": false
+		"html": false,
+		"align": true,
+		"alignWide": true
 	},
 	"textdomain": "inseri-core",
 	"editorScript": "file:./index.js",
diff --git a/src/blocks/textEditor/block.json b/src/blocks/textEditor/block.json
index 539a1ec5..c87321c0 100644
--- a/src/blocks/textEditor/block.json
+++ b/src/blocks/textEditor/block.json
@@ -40,7 +40,9 @@
 		}
 	},
 	"supports": {
-		"html": false
+		"html": false,
+		"align": true,
+		"alignWide": true
 	},
 	"textdomain": "inseri-core",
 	"editorScript": "file:./index.js",
diff --git a/src/blocks/textViewer/block.json b/src/blocks/textViewer/block.json
index a18b508e..88c8560d 100644
--- a/src/blocks/textViewer/block.json
+++ b/src/blocks/textViewer/block.json
@@ -32,7 +32,9 @@
 		}
 	},
 	"supports": {
-		"html": false
+		"html": false,
+		"align": true,
+		"alignWide": true
 	},
 	"textdomain": "inseri-core",
 	"editorScript": "file:./index.js",