downgrade pip version to avoid dependency issues during installations

Author: samuelgarcia

mountainsort4/Dockerfile

@@ -1,6 +1,9 @@
 FROM python:3.8
 
+# downgrade pip version to avoid dependency issues during installations
+RUN pip install --no-input pip==21.2.4
+
 RUN pip install numpy
 
 # Install MountainSort4
-RUN pip install mountainsort4==1.0.0
+RUN pip install mountainsort4==1.0.0

spykingcircus/Dockerfile

@@ -1,5 +1,8 @@
 FROM python:3.8
 
+# downgrade pip version to avoid dependency issues during installations
+RUN pip install --no-input pip==21.2.4
+
 RUN pip install numpy
 
 # Install SpyKING CIRCUS

tridesclous/Dockerfile

@@ -1,5 +1,8 @@
 FROM python:3.8
 
+# downgrade pip version to avoid dependency issues during installations
+RUN pip install --no-input pip==21.2.4
+
 RUN pip install numpy
 
 # Install prerequisites