diff --git a/.circleci/unittest/linux/scripts/environment.yml b/.circleci/unittest/linux/scripts/environment.yml
index dbf84c006e..e616d8f107 100644
--- a/.circleci/unittest/linux/scripts/environment.yml
+++ b/.circleci/unittest/linux/scripts/environment.yml
@@ -18,5 +18,6 @@ dependencies:
     - sphinx
     - sphinx-rtd-theme
     - tqdm
+    - expecttest
     - https://github.com/explosion/spacy-models/releases/download/de_core_news_sm-3.0.0/de_core_news_sm-3.0.0.tar.gz#egg=de_core_news_sm==3.0.0
     - https://github.com/explosion/spacy-models/releases/download/en_core_web_sm-3.0.0/en_core_web_sm-3.0.0.tar.gz#egg=en_core_web_sm==3.0.0
diff --git a/.circleci/unittest/windows/scripts/environment.yml b/.circleci/unittest/windows/scripts/environment.yml
index 21833a0c52..75e6d25c13 100644
--- a/.circleci/unittest/windows/scripts/environment.yml
+++ b/.circleci/unittest/windows/scripts/environment.yml
@@ -21,5 +21,6 @@ dependencies:
     - tqdm
     - certifi
     - future
+    - expecttest
     - https://github.com/explosion/spacy-models/releases/download/de_core_news_sm-3.0.0/de_core_news_sm-3.0.0.tar.gz#egg=de_core_news_sm==3.0.0
     - https://github.com/explosion/spacy-models/releases/download/en_core_web_sm-3.0.0/en_core_web_sm-3.0.0.tar.gz#egg=en_core_web_sm==3.0.0