diff --git a/fetch_externals.py b/fetch_externals.py
index 1e8e058..92668e8 100755
--- a/fetch_externals.py
+++ b/fetch_externals.py
@@ -88,11 +88,11 @@
 basedir = os.path.dirname(os.path.realpath(__file__))
 
 externals = [
-    Git(os.path.join(basedir, 'core_software'), 'ssh://review.mlplatform.org:29418/ml/ethos-u/ethos-u-core-software', revision='master'),
-    Git(os.path.join(basedir, 'core_software/core_driver'), 'ssh://review.mlplatform.org:29418/ml/ethos-u/ethos-u-core-driver', revision='master'),
+    Git(os.path.join(basedir, 'core_software'), "https://review.mlplatform.org/ml/ethos-u/ethos-u-core-software", pushurl='ssh://review.mlplatform.org:29418/ml/ethos-u/ethos-u-core-software', revision='master'),
+    Git(os.path.join(basedir, 'core_software/core_driver'), "https://review.mlplatform.org/ml/ethos-u/ethos-u-core-driver", pushurl='ssh://review.mlplatform.org:29418/ml/ethos-u/ethos-u-core-driver', revision='master'),
     Git(os.path.join(basedir, 'core_software/cmsis'), 'https://github.com/ARM-software/CMSIS_5.git', revision='master'),
     Git(os.path.join(basedir, 'core_software/tensorflow'), 'https://github.com/tensorflow/tensorflow', revision='master'),
-    Git(os.path.join(basedir, 'vela'), 'ssh://review.mlplatform.org:29418/ml/ethos-u/ethos-u-vela', revision='master')
+    Git(os.path.join(basedir, 'vela'), "https://review.mlplatform.org/ml/ethos-u/ethos-u-vela", pushurl='ssh://review.mlplatform.org:29418/ml/ethos-u/ethos-u-vela', revision='master')
 ]
 
 for external in externals: