diff --git a/README.md b/README.md
index cce6927..b804fad 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,9 @@
 # Beacon map
-This map shows all the blinking beacons from [OpenStreetMap](http://www.openstreetmap.org/).
+This map shows all the blinking beacons from [OpenStreetMap](https://www.openstreetmap.org/).
 
 ![Demo time](https://geodienst.github.io/lighthousemap/demo.gif)
 
-More specifically, it asks the [Overpass API](https://www.overpass-api.de) for all elements with an `seamark:light:sequence` attribute, decodes these, and displays them as coloured circles on the map using [Leaflet](http://leafletjs.com). It also tries to take the `seamark:light:range` and `seamark:light:colour` into account.
+More specifically, it asks the [Overpass API](https://www.overpass-api.de) for all elements with an `seamark:light:sequence` attribute, decodes these, and displays them as coloured circles on the map using [Leaflet](https://leafletjs.com). It also tries to take the `seamark:light:range` and `seamark:light:colour` into account.
 
 ## Overpass API
 The current version uses an extracted dataset, but the code allows for directly querying the Overpass API. However, since a query like the one used here can take multiple minutes to complete it is not very useful do always do live queries.
@@ -11,7 +11,7 @@ The current version uses an extracted dataset, but the code allows for directly
 ## Useful stuff
 The `leaflet.indexedfeaturelayer.js` file contains an extension on Leaflet's GeoJSON layer that only add layers/features to the map that are (or are about to be) visible. It uses a spatial index to quickly query which features can be removed from the DOM, increasing performance.
 
-`leaflet.light.js` contains my best guess on how a light sequence will look based on [these descriptions](http://wiki.openstreetmap.org/wiki/Seamarks/Light_Characters). However, it might be inaccurate, and it tries to do its best with the sometimes not entirely consistent data from OSM.
+`leaflet.light.js` contains my best guess on how a light sequence will look based on [these descriptions](https://wiki.openstreetmap.org/wiki/Seamarks/Light_Characters). However, it might be inaccurate, and it tries to do its best with the sometimes not entirely consistent data from OSM.
 
 ## Credits
-This map is made by the [Geodienst](http://www.geodienst.xyz) because it was a fun idea we wanted to try out. Feel free to fork this map and make your own visualisation of OSM data, or contribute improvements back to us. 
+This map is made by the [Geodienst](https://www.geodienst.xyz) because it was a fun idea we wanted to try out. Feel free to fork this map and make your own visualisation of OSM data, or contribute improvements back to us.