diff --git a/packages/google-cloud-bigquery/samples/geography/requirements.txt b/packages/google-cloud-bigquery/samples/geography/requirements.txt
index 7a1926d352fc..a667a2898511 100644
--- a/packages/google-cloud-bigquery/samples/geography/requirements.txt
+++ b/packages/google-cloud-bigquery/samples/geography/requirements.txt
@@ -21,7 +21,7 @@ grpcio==1.75.1
 idna==3.15
 munch==4.0.0
 mypy-extensions==1.1.0
-packaging==25.0
+packaging==26.3
 pandas==2.3.3
 proto-plus==1.26.1
 pyarrow==26.0.0
diff --git a/packages/google-cloud-spanner/.devcontainer/requirements.txt b/packages/google-cloud-spanner/.devcontainer/requirements.txt
index 533558338928..5bd2d374258e 100644
--- a/packages/google-cloud-spanner/.devcontainer/requirements.txt
+++ b/packages/google-cloud-spanner/.devcontainer/requirements.txt
@@ -26,9 +26,9 @@ nox==2024.10.9 \
     --hash=sha256:1d36f309a0a2a853e9bccb76bbef6bb118ba92fa92674d15604ca99adeb29eab \
     --hash=sha256:7aa9dc8d1c27e9f45ab046ffd1c3b2c4f7c91755304769df231308849ebded95
     # via -r requirements.in
-packaging==26.2 \
-    --hash=sha256:5fc45236b9446107ff2415ce77c807cee2862cb6fac22b8a73826d0693b0980e \
-    --hash=sha256:ff452ff5a3e828ce110190feff1178bb1f2ea2281fa2075aadb987c2fb221661
+packaging==26.3 \
+    --hash=sha256:94edc256424af38762eb31306eed28beb9f0efc50a8837492c9d6fd6004aed79 \
+    --hash=sha256:d7193f7c8e4e93f444fde0262bf90af30e16fa0ad0ad44cb553c87339b23cd1c
     # via nox
 platformdirs==4.9.6 \
     --hash=sha256:3bfa75b0ad0db84096ae777218481852c0ebc6c727b3168c1b9e0118e458cf0a \
diff --git a/packages/sqlalchemy-spanner/requirements.txt b/packages/sqlalchemy-spanner/requirements.txt
index 57f58b7e1009..8c45cbdeff3b 100644
--- a/packages/sqlalchemy-spanner/requirements.txt
+++ b/packages/sqlalchemy-spanner/requirements.txt
@@ -696,9 +696,9 @@ opentelemetry-semantic-conventions==0.65b0 \
     #   google-cloud-spanner
     #   opentelemetry-instrumentation
     #   opentelemetry-sdk
-packaging==26.2 \
-    --hash=sha256:5fc45236b9446107ff2415ce77c807cee2862cb6fac22b8a73826d0693b0980e \
-    --hash=sha256:ff452ff5a3e828ce110190feff1178bb1f2ea2281fa2075aadb987c2fb221661
+packaging==26.3 \
+    --hash=sha256:94edc256424af38762eb31306eed28beb9f0efc50a8837492c9d6fd6004aed79 \
+    --hash=sha256:d7193f7c8e4e93f444fde0262bf90af30e16fa0ad0ad44cb553c87339b23cd1c
     # via
     #   -r requirements.in
     #   build