diff --git a/README.md b/README.md
index efe2d4b..4d42573 100644
--- a/README.md
+++ b/README.md
@@ -47,4 +47,4 @@ Orbit can be initialized from Keplerian Elements from the "Keplerian Elements" f
 2. The Earth day and night textures are from the Solar System Scope [website](https://www.solarsystemscope.com/textures/).
 3. The search bar is implemented with [autoComplete.js](https://tarekraafat.github.io/autoComplete.js/#/). See license at [https://github.com/vsr83/OrbitsGL/tree/main/imports/LICENSE.autoComplete.txt](imports/LICENSE.autoComplete.txt). The CSS style file has been modified. 
 4. The controllers have been implemented with [dat.gui](https://github.com/dataarts/dat.gui). See license at [https://github.com/vsr83/OrbitsGL/tree/main/imports/LICENSE.dat.gui.txt](imports/LICENSE.dat.gui.txt).
-5. The SGP4 propagation has been implemented with the [satellite.js](https://github.com/shashwatak/satellite-js). See license at [https://github.com/vsr83/OrbitsGL/tree/main/imports/LICENSE.satellite.js.txt](imports/LICENSE.satellite.js.txt.txt).
+5. The SGP4 propagation has been implemented with the [satellite.js](https://github.com/shashwatak/satellite-js). See license at [https://github.com/vsr83/OrbitsGL/tree/main/imports/LICENSE.satellite.js.txt](imports/LICENSE.satellite.js.txt).