diff --git a/conda-environments/activitysim-dev.yml b/conda-environments/activitysim-dev.yml
index e8c2db0db9..c6957016f4 100644
--- a/conda-environments/activitysim-dev.yml
+++ b/conda-environments/activitysim-dev.yml
@@ -5,7 +5,7 @@ channels:
 dependencies:
 - python=3.9
 - pip
-- numpy >= 1.16.1
+- numpy >= 1.16.1,<=1.21
 - pandas >= 1.1.0
 - pyarrow >= 2.0
 - openmatrix >= 0.3.4.1
diff --git a/conda-environments/activitysim-test-larch.yml b/conda-environments/activitysim-test-larch.yml
index 474736b430..b773c3aa23 100644
--- a/conda-environments/activitysim-test-larch.yml
+++ b/conda-environments/activitysim-test-larch.yml
@@ -6,7 +6,7 @@ channels:
 dependencies:
 - python=${TRAVIS_PYTHON_VERSION}
 - pip
-- numpy >= 1.16.1
+- numpy >= 1.16.1,<=1.21
 - pandas >= 1.1.0
 - pyarrow >= 2.0
 - openmatrix >= 0.3.4.1
@@ -23,3 +23,5 @@ dependencies:
 - coveralls
 - pycodestyle
 - pytest-regressions
+- xarray
+- sharrow
diff --git a/conda-environments/activitysim-test.yml b/conda-environments/activitysim-test.yml
index 6ca5270bd0..d46316e63c 100644
--- a/conda-environments/activitysim-test.yml
+++ b/conda-environments/activitysim-test.yml
@@ -6,7 +6,7 @@ channels:
 dependencies:
 - python=${TRAVIS_PYTHON_VERSION}
 - pip
-- numpy >= 1.16.1
+- numpy >= 1.16.1,<=1.21
 - pandas >= 1.1.0
 - pyarrow >= 2.0
 - openmatrix >= 0.3.4.1