diff --git a/python/requirements.txt b/python/requirements.txt
index 4e11107..a63a697 100644
--- a/python/requirements.txt
+++ b/python/requirements.txt
@@ -1,4 +1,4 @@
-scikit-image
+scikit-image>=0.16.1
 matplotlib
 requests
-# `tensorflow` or `tensorflow-gpu` must be installed, as well.
+# `tensorflow` or `tensorflow-gpu` must be installed manually or via extras.
diff --git a/python/setup.py b/python/setup.py
index 697e7d6..29bf7cd 100755
--- a/python/setup.py
+++ b/python/setup.py
@@ -41,8 +41,8 @@
         ],
         install_requires=requires,
         extras_require={
-            "tf": ["tensorflow>=1.6.0"],
-            "tf_gpu": ["tensorflow-gpu>=1.6.0"],
+            "tf": ["tensorflow>=1.14.0"],
+            "tf_gpu": ["tensorflow-gpu>=1.14.0"],
         },
         packages=['flowdec', 'flowdec.cmd', 'flowdec.nb'],
         package_data={'flowdec': ['datasets/*/*.tif']},