diff --git a/.circleci/config.yml b/.circleci/config.yml
index 98d0520753715b70e1be7e53c1ba482b587d8c41..572120c03bf0c3cff3546f107279b0ec3f74056c 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -23,6 +23,16 @@ jobs:
       NIX_PATH: "nixpkgs=https://github.com/NixOS/nixpkgs/archive/3c83ad6ac13b67101cc3e2e07781963a010c1624.tar.gz"
 
     steps:
+      - run:
+          name: "Install CA Certificates"
+          command: |
+            # Required for cache and artifact interactions.  Though we use a
+            # nix image, it's actually an alpine base...  The CircleCI cache
+            # management and artifact uploader don't know how to use the nix
+            # ca bundle we could install.
+            apk update
+            apk add ca-certificates
+
       - run:
           name: "Install Git"
           command: |