numpy version in py36_locale_slow_old_np (#36599)

Author: simonjayhawkins

ci/deps/azure-36-32bit.yaml

@@ -15,7 +15,7 @@ dependencies:
   - attrs=19.1.0
   - gcc_linux-32
   - gxx_linux-32
-  - numpy=1.14.*
+  - numpy=1.15.4
   - python-dateutil
   - pytz=2017.2
 

ci/deps/azure-36-locale_slow.yaml

@@ -17,7 +17,7 @@ dependencies:
   - bottleneck=1.2.*
   - lxml
   - matplotlib=2.2.2
-  - numpy=1.14.*
+  - numpy=1.15.4
   - openpyxl=2.5.7
   - python-dateutil
   - python-blosc