diff --git a/README.rst b/README.rst
index 1c3b94b45153ef2188354d10413ffb3ac737a1ea..4be53a91e20017bb45560a25ac44323a2e9fa1d6 100644
--- a/README.rst
+++ b/README.rst
@@ -1,7 +1,7 @@
 =====
 SICOR
 =====
-.. image:: http://enmap.gitext.gfz-potsdam.de/sicor/doc/_images/sicor_logo_lr.png
+.. image:: https://enmap.gitext-pages.gfz-potsdam.de/sicor/doc/_images/sicor_logo_lr.png
    :width: 300px
    :alt: SICOR Logo
 
@@ -193,9 +193,9 @@ Features
 * CH4 retrieval from hyperspectral data: work in progress
 
 
-.. _coverage: http://enmap.gitext.gfz-potsdam.de/sicor/coverage/
-.. _test_report: http://enmap.gitext.gfz-potsdam.de/sicor/coverage/report.html
-.. _documentation: http://enmap.gitext.gfz-potsdam.de/sicor/doc/
+.. _coverage: https://enmap.gitext-pages.gfz-potsdam.de/sicor/coverage/
+.. _test_report: https://enmap.gitext-pages.gfz-potsdam.de/sicor/coverage/report.html
+.. _documentation: https://enmap.gitext-pages.gfz-potsdam.de/sicor/doc/
 .. _conda: https://conda.io/docs/
 .. _git-lfs: https://git-lfs.github.com/
 
diff --git a/docs/about.rst b/docs/about.rst
index ef5f4b2e05a26fdb429f2532e9c703ac338f66f5..9a1a6e7e6298fb805251f52c3fdf5a15311fa2e3 100644
--- a/docs/about.rst
+++ b/docs/about.rst
@@ -2,7 +2,7 @@
 About
 =====
 
-.. image:: images/sicor_logo_lr.png
+.. image:: https://enmap.gitext-pages.gfz-potsdam.de/sicor/doc/_images/sicor_logo_lr.png
    :width: 150px
    :alt: SICOR Logo
 
diff --git a/docs/algorithm_descriptions.rst b/docs/algorithm_descriptions.rst
index 4ee8474f6cb7e5745b9b5af3a54b2202b8482fe3..8a03b7fb971d94d648bfb7a91a1fb074941ed5c5 100644
--- a/docs/algorithm_descriptions.rst
+++ b/docs/algorithm_descriptions.rst
@@ -1,5 +1,5 @@
 Algorithm descriptions
-=================
+======================
 
 
 Forward operator