diff --git a/ansible/tljh.yml b/ansible/tljh.yml
index 5c46e01..7a052f9 100644
--- a/ansible/tljh.yml
+++ b/ansible/tljh.yml
@@ -21,7 +21,7 @@
       changed_when: False
 
     - name: Upgrade the tljh-plasma plugin first if it is already installed
-      shell: "{{ tljh_prefix }}/hub/bin/pip3 install --upgrade {{ tljh_plasma }} {{ tljh_repo2docker }}"
+      shell: "{{ tljh_prefix }}/hub/bin/pip3 install --upgrade {{ tljh_plasma }} '{{ tljh_repo2docker }}'"
       when: tljh_plasma_installed.rc == 0
 
     - name: Run the TLJH installer
diff --git a/ansible/vars/default.yml b/ansible/vars/default.yml
index 2d992cd..4c42cd2 100644
--- a/ansible/vars/default.yml
+++ b/ansible/vars/default.yml
@@ -1,7 +1,7 @@
 ---
 
 tljh_plasma: git+https://github.com/plasmabio/plasma@master#"egg=tljh-plasma&subdirectory=tljh-plasma"
-tljh_repo2docker: git+https://github.com/plasmabio/tljh-repo2docker@master
+tljh_repo2docker: tljh-repo2docker<2
 tljh_installer_dest: /srv/tljh-installer.py
 tljh_prefix: /opt/tljh
 # TODO: update to upstream TLJH links when the --no-user-env (or similar) is available
diff --git a/dev-requirements.txt b/dev-requirements.txt
index 2e71f20..fe4a28b 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1,5 +1,5 @@
 git+https://github.com/jupyterhub/the-littlest-jupyterhub
-git+https://github.com/plasmabio/tljh-repo2docker
+tljh-repo2docker<2
 jupyterhub~=1.5
 notebook<7
 pytest