diff --git a/repo2docker/buildpacks/conda/__init__.py b/repo2docker/buildpacks/conda/__init__.py
index 66aff037a..781d5d3d1 100644
--- a/repo2docker/buildpacks/conda/__init__.py
+++ b/repo2docker/buildpacks/conda/__init__.py
@@ -141,7 +141,7 @@ def get_build_scripts(self):
             ),
         ]
 
-    major_pythons = {"2": "2.7", "3": "3.7"}
+    major_pythons = {"2": "2.7", "3": "3.10"}
 
     def get_build_script_files(self):
         """
diff --git a/tests/venv/default/verify b/tests/venv/default/verify
index 559670863..b5b2b9920 100755
--- a/tests/venv/default/verify
+++ b/tests/venv/default/verify
@@ -2,7 +2,7 @@
 # Verify that the default just provides a py3 environment with jupyter
 import sys
 
-assert sys.version_info[:2] == (3, 7), sys.version
+assert sys.version_info[:2] == (3, 10), sys.version
 import jupyter
 
 with open("/tmp/appendix") as f: