diff --git a/repo2docker/detectors.py b/repo2docker/detectors.py
index 8cc36cfc..905465b9 100644
--- a/repo2docker/detectors.py
+++ b/repo2docker/detectors.py
@@ -130,7 +130,7 @@ class CondaBuildPack(S2IBuildPack):
     """Build Pack for installing from a conda environment.yml using S2I"""
 
     name = Unicode('conda')
-    build_image = Unicode('jupyterhub/singleuser-builder-conda:v0.1.5', config=True)
+    build_image = Unicode('jupyterhub/singleuser-builder-conda:v0.2.0', config=True)
 
     def detect(self, workdir):
         return os.path.exists(os.path.join(workdir, 'environment.yml'))
@@ -140,8 +140,8 @@ class PythonBuildPack(S2IBuildPack):
     """Build Pack for installing from a pip requirements.txt using S2I"""
     name = Unicode('python-pip')
     runtime_builder_map = Dict({
-        'python-2.7': 'jupyterhub/singleuser-builder-venv-2.7:v0.1.5',
-        'python-3.5': 'jupyterhub/singleuser-builder-venv-3.5:v0.1.5',
+        'python-2.7': 'jupyterhub/singleuser-builder-venv-2.7:v0.2.0',
+        'python-3.5': 'jupyterhub/singleuser-builder-venv-3.5:v0.2.0',
     })
 
     runtime = Unicode(