diff --git a/vtm/src/org/oscim/tiling/source/oscimap4/OSciMap4TileSource.java b/vtm/src/org/oscim/tiling/source/oscimap4/OSciMap4TileSource.java
index 09b01aeb..5456bc57 100644
--- a/vtm/src/org/oscim/tiling/source/oscimap4/OSciMap4TileSource.java
+++ b/vtm/src/org/oscim/tiling/source/oscimap4/OSciMap4TileSource.java
@@ -24,7 +24,7 @@ import org.oscim.tiling.source.UrlTileSource;
 
 public class OSciMap4TileSource extends UrlTileSource {
 
-    private static final String DEFAULT_URL = "http://opensciencemap.org/tiles/vtm";
+    private static final String DEFAULT_URL = "https://oscim.ogiqvo.com/tiles/vtm";
     private static final String DEFAULT_PATH = "/{Z}/{X}/{Y}.vtm";
 
     public static class Builder<T extends Builder<T>> extends UrlTileSource.Builder<T> {