diff --git a/conda/recipes/rapids-build-env/meta.yaml b/conda/recipes/rapids-build-env/meta.yaml
index c2885a92..c0463159 100644
--- a/conda/recipes/rapids-build-env/meta.yaml
+++ b/conda/recipes/rapids-build-env/meta.yaml
@@ -78,6 +78,7 @@ requirements:
     - gmock {{ gmock_version }}
     - graphviz
     - gtest {{ gtest_version }}
+    - hdbscan
     - httpretty
     - hypothesis
     - isort {{ isort_version }}