Backport PR #39544: CI: pin numpy<1.20 (#39545)

meeseeksmachine · jbrockmendel · web-flow · commit ddb051b5b6e7 · 2021-02-01T16:55:25.000-05:00
Co-authored-by: jbrockmendel &lt;jbrockmendel@gmail.com&gt;
diff --git a/ci/deps/actions-37-locale.yaml b/ci/deps/actions-37-locale.yaml
@@ -11,7 +11,7 @@ dependencies:
   - hypothesis>=3.58.0
 
   # required
-  - numpy
+  - numpy<1.20  # GH#39541 compat for pyarrow<3
   - python-dateutil
   - pytz
 
diff --git a/ci/deps/azure-38-locale.yaml b/ci/deps/azure-38-locale.yaml
@@ -24,7 +24,7 @@ dependencies:
   - moto
   - nomkl
   - numexpr
-  - numpy
+  - numpy<1.20  # GH#39541 compat with pyarrow<3
   - openpyxl
   - pytables
   - python-dateutil
