diff --git a/readme.md b/readme.md
index 555faf5..b36f850 100644
--- a/readme.md
+++ b/readme.md
@@ -1,21 +1,21 @@
 # GeoJSON Schema
 
-This repository provides tools for building [JSON Schema](http://json-schema.org/) docs for [GeoJSON](http://geojson.org/).  A schema is generated for each of the GeoJSON object types, and each individual doc is complete (without `$ref`s to other documents).  So applications can consume just what they need and avoid extra fetching.
+This repository provides tools for building [JSON Schema](https://json-schema.org/) docs for [GeoJSON](https://geojson.org/).  A schema is generated for each of the GeoJSON object types, and each individual doc is complete (without `$ref`s to other documents).  So applications can consume just what they need and avoid extra fetching.
 
 See JSON Schema docs for the GeoJSON types below:
- * [`FeatureCollection`](http://geojson.org/schema/FeatureCollection.json)
- * [`Feature`](http://geojson.org/schema/Feature.json)
- * [`Geometry`](http://geojson.org/schema/Geometry.json)
- * [`GeometryCollection`](http://geojson.org/schema/GeometryCollection.json)
- * [`MultiPolygon`](http://geojson.org/schema/MultiPolygon.json)
- * [`MultiLineString`](http://geojson.org/schema/MultiLineString.json)
- * [`MultiPoint`](http://geojson.org/schema/MultiPoint.json)
- * [`Polygon`](http://geojson.org/schema/Polygon.json)
- * [`LineString`](http://geojson.org/schema/LineString.json)
- * [`Point`](http://geojson.org/schema/Point.json)
+ * [`FeatureCollection`](https://geojson.org/schema/FeatureCollection.json)
+ * [`Feature`](https://geojson.org/schema/Feature.json)
+ * [`Geometry`](https://geojson.org/schema/Geometry.json)
+ * [`GeometryCollection`](https://geojson.org/schema/GeometryCollection.json)
+ * [`MultiPolygon`](https://geojson.org/schema/MultiPolygon.json)
+ * [`MultiLineString`](https://geojson.org/schema/MultiLineString.json)
+ * [`MultiPoint`](https://geojson.org/schema/MultiPoint.json)
+ * [`Polygon`](https://geojson.org/schema/Polygon.json)
+ * [`LineString`](https://geojson.org/schema/LineString.json)
+ * [`Point`](https://geojson.org/schema/Point.json)
 
 The overall GeoJSON schema can be found at
- * [`GeoJSON`](http://geojson.org/schema/GeoJSON.json)
+ * [`GeoJSON`](https://geojson.org/schema/GeoJSON.json)
 
 ## Limitations
 
@@ -33,6 +33,6 @@ To build the schema docs:
 
 The output will be in the `build` directory.
 
-A CI job builds commits pushed to `main`.  After a successful build, artifacts are pushed to the `gh-pages` branch and will be accessible at geojson.org/schema/<name>.json (e.g. http://geojson.org/schema/Point.json).
+A CI job builds commits pushed to `main`.  After a successful build, artifacts are pushed to the `gh-pages` branch and will be accessible at geojson.org/schema/<name>.json (e.g. https://geojson.org/schema/Point.json).
 
 [![Build Status](https://github.com/geojson/schema/workflows/Deploy/badge.svg)](https://github.com/geojson/schema/actions?workflow=Deploy)