diff --git a/README.md b/README.md
index 2dd31c1..b8fa9d9 100644
--- a/README.md
+++ b/README.md
@@ -42,13 +42,13 @@ See the [go-pmtiles](https://github.com/protomaps/go-pmtiles) repository.
 
 ### Python
 
-See https://github.com/protomaps/PMTiles/tree/master/python/bin for library usage
+See https://github.com/protomaps/PMTiles/tree/main/python/bin for library usage
 
 ### Serverless
 
-[PMTiles on AWS Lambda](https://github.com/protomaps/PMTiles/tree/master/serverless/aws)
+[PMTiles on AWS Lambda](https://github.com/protomaps/PMTiles/tree/main/serverless/aws)
 
-[PMTiles on Cloudflare Workers](https://github.com/protomaps/PMTiles/tree/master/serverless/cloudflare)
+[PMTiles on Cloudflare Workers](https://github.com/protomaps/PMTiles/tree/main/serverless/cloudflare)
 
 ## Specification
 
diff --git a/js/README.md b/js/README.md
index 27425cd..1aa6a97 100644
--- a/js/README.md
+++ b/js/README.md
@@ -21,7 +21,7 @@ const p = new pmtiles.PMTiles('example.pmtiles')
 pmtiles.leafletRasterLayer(p,{attribution:'© <a href="https://openstreetmap.org">OpenStreetMap</a>'}).addTo(map)
 ````
 
-[Live example](https://protomaps.github.io/PMTiles/examples/leaflet.html) | [Code](https://github.com/protomaps/PMTiles/blob/master/js/examples/leaflet.html)
+[Live example](https://protomaps.github.io/PMTiles/examples/leaflet.html) | [Code](https://github.com/protomaps/PMTiles/blob/main/js/examples/leaflet.html)
 
 ### Leaflet: Vector tileset
 
@@ -44,7 +44,7 @@ var style = {
     ...
 ```
 
-[Live example](https://protomaps.github.io/PMTiles/examples/maplibre.html) | [Code](https://github.com/protomaps/PMTiles/blob/master/js/examples/maplibre.html)
+[Live example](https://protomaps.github.io/PMTiles/examples/maplibre.html) | [Code](https://github.com/protomaps/PMTiles/blob/main/js/examples/maplibre.html)
 
 # CORS