diff --git a/REQUIREMENTS-STRICT.txt b/REQUIREMENTS-STRICT.txt
index a045c80f6..7e6602079 100644
--- a/REQUIREMENTS-STRICT.txt
+++ b/REQUIREMENTS-STRICT.txt
@@ -3,9 +3,9 @@ appnope==0.1.0
 attrs==19.3.0
 backcall==0.1.0
 bleach==3.1.0
-boto3==1.10.19
-botocore==1.13.19
-certifi==2019.9.11
+boto3==1.10.29
+botocore==1.13.29
+certifi==2019.11.28
 chardet==3.0.4
 Click==7.0
 cycler==0.10.0
@@ -17,9 +17,9 @@ docutils==0.15.2
 entrypoints==0.3
 idna==2.8
 imageio==2.6.1
-importlib-metadata==0.23
+importlib-metadata==1.1.0
 ipykernel==5.1.3
-ipython==7.9.0
+ipython==7.10.1
 ipython-genutils==0.2.0
 ipywidgets==7.5.1
 jedi==0.15.1
@@ -31,9 +31,9 @@ jupyter-client==5.3.4
 jupyter-core==4.6.1
 kiwisolver==1.1.0
 MarkupSafe==1.1.1
-matplotlib==3.1.1
+matplotlib==3.1.2
 mistune==0.8.4
-more-itertools==7.2.0
+more-itertools==8.0.0
 mpmath==1.1.0
 nbconvert==5.6.1
 nbformat==4.4.0
@@ -48,11 +48,11 @@ pexpect==4.7.0
 pickleshare==0.7.5
 Pillow==6.2.1
 prometheus-client==0.7.1
-prompt-toolkit==2.0.10
+prompt-toolkit==3.0.2
 ptyprocess==0.6.0
-Pygments==2.4.2
+Pygments==2.5.2
 pyparsing==2.4.5
-pyrsistent==0.15.5
+pyrsistent==0.15.6
 python-dateutil==2.8.0
 pytz==2019.3
 PyWavelets==1.1.1
@@ -63,8 +63,8 @@ requests==2.22.0
 s3transfer==0.2.1
 scikit-image==0.15.0
 scikit-learn==0.21.3
-scipy==1.3.2
-semantic-version==2.8.2
+scipy==1.3.3
+semantic-version==2.8.3
 Send2Trash==1.5.0
 showit==1.1.4
 six==1.13.0
@@ -73,7 +73,7 @@ sympy==1.4
 terminado==0.8.3
 testpath==0.4.4
 tornado==6.0.3
-tqdm==4.38.0
+tqdm==4.40.0
 trackpy==0.4.2
 traitlets==4.3.3
 urllib3==1.25.7
@@ -81,5 +81,5 @@ validators==0.14.0
 wcwidth==0.1.7
 webencodings==0.5.1
 widgetsnbextension==3.5.1
-xarray==0.14.0
+xarray==0.14.1
 zipp==0.6.0
diff --git a/starfish/REQUIREMENTS-STRICT.txt b/starfish/REQUIREMENTS-STRICT.txt
index a045c80f6..7e6602079 100644
--- a/starfish/REQUIREMENTS-STRICT.txt
+++ b/starfish/REQUIREMENTS-STRICT.txt
@@ -3,9 +3,9 @@ appnope==0.1.0
 attrs==19.3.0
 backcall==0.1.0
 bleach==3.1.0
-boto3==1.10.19
-botocore==1.13.19
-certifi==2019.9.11
+boto3==1.10.29
+botocore==1.13.29
+certifi==2019.11.28
 chardet==3.0.4
 Click==7.0
 cycler==0.10.0
@@ -17,9 +17,9 @@ docutils==0.15.2
 entrypoints==0.3
 idna==2.8
 imageio==2.6.1
-importlib-metadata==0.23
+importlib-metadata==1.1.0
 ipykernel==5.1.3
-ipython==7.9.0
+ipython==7.10.1
 ipython-genutils==0.2.0
 ipywidgets==7.5.1
 jedi==0.15.1
@@ -31,9 +31,9 @@ jupyter-client==5.3.4
 jupyter-core==4.6.1
 kiwisolver==1.1.0
 MarkupSafe==1.1.1
-matplotlib==3.1.1
+matplotlib==3.1.2
 mistune==0.8.4
-more-itertools==7.2.0
+more-itertools==8.0.0
 mpmath==1.1.0
 nbconvert==5.6.1
 nbformat==4.4.0
@@ -48,11 +48,11 @@ pexpect==4.7.0
 pickleshare==0.7.5
 Pillow==6.2.1
 prometheus-client==0.7.1
-prompt-toolkit==2.0.10
+prompt-toolkit==3.0.2
 ptyprocess==0.6.0
-Pygments==2.4.2
+Pygments==2.5.2
 pyparsing==2.4.5
-pyrsistent==0.15.5
+pyrsistent==0.15.6
 python-dateutil==2.8.0
 pytz==2019.3
 PyWavelets==1.1.1
@@ -63,8 +63,8 @@ requests==2.22.0
 s3transfer==0.2.1
 scikit-image==0.15.0
 scikit-learn==0.21.3
-scipy==1.3.2
-semantic-version==2.8.2
+scipy==1.3.3
+semantic-version==2.8.3
 Send2Trash==1.5.0
 showit==1.1.4
 six==1.13.0
@@ -73,7 +73,7 @@ sympy==1.4
 terminado==0.8.3
 testpath==0.4.4
 tornado==6.0.3
-tqdm==4.38.0
+tqdm==4.40.0
 trackpy==0.4.2
 traitlets==4.3.3
 urllib3==1.25.7
@@ -81,5 +81,5 @@ validators==0.14.0
 wcwidth==0.1.7
 webencodings==0.5.1
 widgetsnbextension==3.5.1
-xarray==0.14.0
+xarray==0.14.1
 zipp==0.6.0
diff --git a/starfish/core/spots/DetectPixels/combine_adjacent_features.py b/starfish/core/spots/DetectPixels/combine_adjacent_features.py
index 2aba7aefc..7057fb100 100644
--- a/starfish/core/spots/DetectPixels/combine_adjacent_features.py
+++ b/starfish/core/spots/DetectPixels/combine_adjacent_features.py
@@ -212,7 +212,7 @@ def _calculate_mean_pixel_traces(
 
         # the 0th pixel trace corresponds to background. If present, drop it.
         try:
-            mean_pixel_traces = mean_pixel_traces.drop(0, dim=Features.AXIS)
+            mean_pixel_traces = mean_pixel_traces.drop_sel({Features.AXIS: 0})
         except KeyError:
             pass