diff --git a/packages/google-cloud-bigquery/samples/geography/requirements.txt b/packages/google-cloud-bigquery/samples/geography/requirements.txt
index 1b076fde310d..9cbd23f48889 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==23.0.1
diff --git a/packages/google-cloud-spanner/.devcontainer/requirements.txt b/packages/google-cloud-spanner/.devcontainer/requirements.txt
index d8354b9a2bf6..30028bf4196b 100644
--- a/packages/google-cloud-spanner/.devcontainer/requirements.txt
+++ b/packages/google-cloud-spanner/.devcontainer/requirements.txt
@@ -24,9 +24,9 @@ nox==2026.4.10 \
     --hash=sha256:082c117627590d9b90aa21f86df89b310b07c5842539524203bcb3c719f116c1 \
     --hash=sha256:2d0af5374f3f37a295428c927d1b04a8182aa01762897d172446dda2f1ce9692
     # 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 a2ae28b9c688..80c32a1c1b55 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