diff --git a/Makefile b/Makefile
index 1a3e0cb2..c2d2c5ed 100644
--- a/Makefile
+++ b/Makefile
@@ -18,7 +18,7 @@ ${GOBIN}/protoc-gen-gogo${EXE}:
 
 ifneq ($(OS),Windows_NT)
 internal/pb/pb.pb.go: internal/pb/pb.proto ${GOBIN}/protoc-gen-gogo
-	PATH=${PATH}:${GOBIN} protoc --gogo_out=internal/pb --proto_path=internal/pb internal/pb/pb.proto
+	PATH="${PATH}":${GOBIN} protoc --gogo_out=internal/pb --proto_path=internal/pb internal/pb/pb.proto
 else
 internal/pb/pb.pb.go: internal/pb/pb.proto ${GOBIN}/protoc-gen-gogo.exe
 	export PATH="${PATH};${GOBIN}" && \
diff --git a/python/labours/_vendor/swivel.py b/python/labours/_vendor/swivel.py
index d97b924c..c6a2318b 100644
--- a/python/labours/_vendor/swivel.py
+++ b/python/labours/_vendor/swivel.py
@@ -59,7 +59,7 @@
 import time
 
 import numpy as np
-import tensorflow as tf
+import tensorflow.compat.v1 as tf
 from tensorflow.python.client import device_lib
 
 flags = tf.app.flags
diff --git a/python/labours/modes/devs.py b/python/labours/modes/devs.py
index f969f895..8d15296e 100644
--- a/python/labours/modes/devs.py
+++ b/python/labours/modes/devs.py
@@ -21,7 +21,8 @@ def show_devs(
     days: Dict[int, Dict[int, DevDay]],
     max_people: int = 50,
 ) -> None:
-    from scipy.signal import convolve, slepian
+    from scipy.signal import convolve
+    from scipy.signal.windows import slepian
 
     if len(people) > max_people:
         print("Picking top %s developers by commit count" % max_people)
@@ -247,7 +248,8 @@ def show_devs_efforts(
     days: Dict[int, Dict[int, DevDay]],
     max_people: int,
 ) -> None:
-    from scipy.signal import convolve, slepian
+    from scipy.signal import convolve
+    from scipy.signal.windows import slepian
 
     start_date = datetime.fromtimestamp(start_date)
     start_date = datetime(start_date.year, start_date.month, start_date.day)
diff --git a/python/labours/modes/old_vs_new.py b/python/labours/modes/old_vs_new.py
index ff4fedb9..3d7f586b 100644
--- a/python/labours/modes/old_vs_new.py
+++ b/python/labours/modes/old_vs_new.py
@@ -17,7 +17,8 @@ def show_old_vs_new(
     people: List[str],
     days: Dict[int, Dict[int, DevDay]],
 ) -> None:
-    from scipy.signal import convolve, slepian
+    from scipy.signal import convolve
+    from scipy.signal.windows import slepian
 
     start_date = datetime.fromtimestamp(start_date)
     start_date = datetime(start_date.year, start_date.month, start_date.day)
diff --git a/python/labours/modes/sentiment.py b/python/labours/modes/sentiment.py
index 96e8168b..493b0d89 100644
--- a/python/labours/modes/sentiment.py
+++ b/python/labours/modes/sentiment.py
@@ -7,7 +7,8 @@
 
 
 def show_sentiment_stats(args, name, resample, start_date, data):
-    from scipy.signal import convolve, slepian
+    from scipy.signal import convolve
+    from scipy.signal.windows import slepian
 
     matplotlib, pyplot = import_pyplot(args.backend, args.style)
 
diff --git a/python/requirements.in b/python/requirements.in
index 92ad9401..e01bce58 100644
--- a/python/requirements.in
+++ b/python/requirements.in
@@ -1,8 +1,8 @@
 matplotlib>=2.0,<4.0
 numpy>=1.12.0,<2.0
-pandas>=0.20.0,<1.0
+pandas>=0.20.0,<2.0
 PyYAML>=3.0,<6.0
-scipy>=0.19.0,<1.2.2
+scipy>=0.19.0,<=2.0
 protobuf>=3.5.0,<4.0
 munch>=2.0,<3.0
 hdbscan>=0.8.0,<2.0