diff --git a/.circleci/config.yml b/.circleci/config.yml
index 85f2dda..9d8ae81 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -11,7 +11,7 @@ jobs:
           name: Update packages
           command: |
             apt-get update
-            apt-get -y install build-essential libssl-dev
+            apt-get -y install build-essential libssl-dev pkg-config
       - run:
           name: Add conda channels
           command: |
diff --git a/roaring-landmask/meta.yaml b/roaring-landmask/meta.yaml
index baae465..3d43e69 100644
--- a/roaring-landmask/meta.yaml
+++ b/roaring-landmask/meta.yaml
@@ -20,7 +20,6 @@ requirements:
     - python >=3.9
     - maturin
     - pip
-    - pkg-config
     - {{ compiler('rust') }}
   run:
     - python >=3.9