diff --git a/samples/geography/requirements.txt b/samples/geography/requirements.txt
index 8c268759e..ff614977b 100644
--- a/samples/geography/requirements.txt
+++ b/samples/geography/requirements.txt
@@ -21,7 +21,7 @@ google-cloud-core==2.4.1
 google-crc32c==1.5.0
 google-resumable-media==2.7.0
 googleapis-common-protos==1.63.0
-grpcio==1.62.2; python_version == '3.7'
+grpcio===1.62.2; python_version == '3.7'
 grpcio==1.63.0; python_version >= '3.8'
 idna==3.7
 munch==4.0.0
@@ -32,7 +32,7 @@ pandas===2.0.3; python_version == '3.8'
 pandas==2.2.2; python_version >= '3.9'
 proto-plus==1.23.0
 pyarrow==12.0.1; python_version == '3.7'
-pyarrow==16.0.0; python_version >= '3.8'
+pyarrow==16.1.0; python_version >= '3.8'
 pyasn1===0.5.1; python_version == '3.7'
 pyasn1==0.6.0; python_version >= '3.8'
 pyasn1-modules===0.3.0; python_version == '3.7'
diff --git a/samples/notebooks/requirements.txt b/samples/notebooks/requirements.txt
index a60175de5..3407323ee 100644
--- a/samples/notebooks/requirements.txt
+++ b/samples/notebooks/requirements.txt
@@ -6,7 +6,7 @@ ipython===8.0.1; python_version == '3.8'
 ipython===8.18.1; python_version >= '3.9'
 matplotlib===3.5.3; python_version == '3.7'
 matplotlib===3.7.4; python_version == '3.8'
-matplotlib==3.8.4; python_version >= '3.9'
+matplotlib==3.9.0; python_version >= '3.9'
 pandas===1.3.5; python_version == '3.7'
 pandas===2.0.3; python_version == '3.8'
 pandas==2.2.2; python_version >= '3.9'