diff --git a/bci/version_control/repository/online/chromium.py b/bci/version_control/repository/online/chromium.py
index c7af52e..020921d 100644
--- a/bci/version_control/repository/online/chromium.py
+++ b/bci/version_control/repository/online/chromium.py
@@ -4,7 +4,7 @@
 
 LOGGER = logging.getLogger("bci")
 
-META_DATA_URL = "https://gjfr.dev/res/data/chromium.json"
+META_DATA_URL = "https://distrinet.pages.gitlab.kuleuven.be/users/gertjan-franken/bughog-revision-metadata/chromium_release_base_revs.json"
 REPO_TAGS_URL = "https://chromium.googlesource.com/chromium/src/+refs/"
 
 
diff --git a/bci/version_control/repository/online/firefox.py b/bci/version_control/repository/online/firefox.py
index e0a4704..5fbc1ff 100644
--- a/bci/version_control/repository/online/firefox.py
+++ b/bci/version_control/repository/online/firefox.py
@@ -4,7 +4,7 @@
 
 LOGGER = logging.getLogger("bci")
 
-META_DATA_URL = "https://gjfr.dev/res/data/firefox.json"
+META_DATA_URL = "https://distrinet.pages.gitlab.kuleuven.be/users/gertjan-franken/bughog-revision-metadata/firefox_release_base_revs.json"
 REPO_REVISION_URL = "https://hg.mozilla.org/releases/mozilla-release/rev/"
 
 
diff --git a/bci/version_control/states/firefox.py b/bci/version_control/states/firefox.py
index d41c892..7f9a8be 100644
--- a/bci/version_control/states/firefox.py
+++ b/bci/version_control/states/firefox.py
@@ -1,8 +1,8 @@
 from bci.version_control.states.state import State
 from bci.util import request_json
 
-BINARY_AVAILABILITY_URL = "https://gjfr.dev/res/data/firefox_binary_availability_summary.json"
-REVISION_NUMBER_MAPPING_URL = "https://gjfr.dev/res/data/firefox_revision_number_to_id.json"
+BINARY_AVAILABILITY_URL = "https://distrinet.pages.gitlab.kuleuven.be/users/gertjan-franken/bughog-revision-metadata/firefox_binary_availability.json"
+REVISION_NUMBER_MAPPING_URL = "https://distrinet.pages.gitlab.kuleuven.be/users/gertjan-franken/bughog-revision-metadata/firefox_revision_nb_to_id.json"
 
 BINARY_AVAILABILITY_MAPPING = request_json(BINARY_AVAILABILITY_URL)["data"]
 REVISION_NUMBER_MAPPING = request_json(REVISION_NUMBER_MAPPING_URL)["data"]