Fix matplotlib version for upcoming release

hrzn · hrzn · commit d2519926cae3 · 2021-08-13T11:54:47.000+02:00
diff --git a/requirements/core.txt b/requirements/core.txt
@@ -2,7 +2,7 @@ numpy>=1.19.0
 xarray>=0.18.0
 scipy>=1.6.0
 statsmodels>=0.12.0
-matplotlib>=3.4.0
+matplotlib==3.4.2
 pandas>=1.2.0,<1.3.0
 ipython>=7.22.0
 tqdm>=4.60.0
