diff --git a/samples/geography/requirements.txt b/samples/geography/requirements.txt
index 4c566cfb3..a31643f6f 100644
--- a/samples/geography/requirements.txt
+++ b/samples/geography/requirements.txt
@@ -5,11 +5,9 @@ charset-normalizer==2.0.12
 click==8.0.4
 click-plugins==1.1.1
 cligj==0.7.2
-dataclasses==0.8; python_version < '3.7'
 Fiona==1.8.21
 geojson==2.5.0
-geopandas==0.9.0; python_version < '3.7'
-geopandas==0.10.2; python_version >= '3.7'
+geopandas==0.10.2
 google-api-core==2.6.0
 google-auth==2.6.0
 google-cloud-bigquery==2.34.1
@@ -24,7 +22,6 @@ libcst==0.4.1
 munch==2.5.0
 mypy-extensions==0.4.3
 packaging==21.3
-pandas==1.1.5; python_version < '3.7'
 pandas==1.3.5; python_version == '3.7'
 pandas==1.4.1; python_version >= '3.8'
 proto-plus==1.20.3
diff --git a/samples/magics/requirements.txt b/samples/magics/requirements.txt
index ba873ed3a..f047c46b6 100644
--- a/samples/magics/requirements.txt
+++ b/samples/magics/requirements.txt
@@ -1,13 +1,10 @@
 google-cloud-bigquery-storage==2.12.0
 google-auth-oauthlib==0.5.0
 grpcio==1.44.0
-ipython==7.16.3; python_version < '3.7'
 ipython==7.31.1; python_version == '3.7'
 ipython==8.0.1; python_version == '3.8'
 ipython==8.1.1; python_version >= '3.9'
-matplotlib==3.5.1; python_version < '3.7'
-matplotlib==3.5.1; python_version >= '3.7'
-pandas==1.1.5; python_version < '3.7'
+matplotlib==3.5.1
 pandas==1.3.5; python_version == '3.7'
 pandas==1.4.1; python_version >= '3.8'
 pyarrow==7.0.0
diff --git a/samples/snippets/requirements.txt b/samples/snippets/requirements.txt
index ba873ed3a..f047c46b6 100644
--- a/samples/snippets/requirements.txt
+++ b/samples/snippets/requirements.txt
@@ -1,13 +1,10 @@
 google-cloud-bigquery-storage==2.12.0
 google-auth-oauthlib==0.5.0
 grpcio==1.44.0
-ipython==7.16.3; python_version < '3.7'
 ipython==7.31.1; python_version == '3.7'
 ipython==8.0.1; python_version == '3.8'
 ipython==8.1.1; python_version >= '3.9'
-matplotlib==3.5.1; python_version < '3.7'
-matplotlib==3.5.1; python_version >= '3.7'
-pandas==1.1.5; python_version < '3.7'
+matplotlib==3.5.1
 pandas==1.3.5; python_version == '3.7'
 pandas==1.4.1; python_version >= '3.8'
 pyarrow==7.0.0