diff --git a/sdks/python/build.gradle b/sdks/python/build.gradle
index 5f09dff57e8f..d07936ad9176 100644
--- a/sdks/python/build.gradle
+++ b/sdks/python/build.gradle
@@ -74,7 +74,7 @@ tasks.register("generateExternalTransformsConfig") {
   dependsOn ":sdks:java:io:google-cloud-platform:expansion-service:build"
   dependsOn ":sdks:java:io:expansion-service:build"
   // Keep this in-sync with pyproject.toml
-  def PyYaml = "'pyyaml>=3.12,<7.0.0'"
+  def PyYaml = "'pyyaml>=6.0.3,<7.0.0'"
 
   doLast {
     exec {
diff --git a/sdks/python/pyproject.toml b/sdks/python/pyproject.toml
index c764298ebae3..79a02253209b 100644
--- a/sdks/python/pyproject.toml
+++ b/sdks/python/pyproject.toml
@@ -35,7 +35,7 @@ requires = [
     "cython>=3.0,<4",
     ## deps for generating external transform wrappers:
     # also update PyYaml bounds in sdks:python:generateExternalTransformsConfig
-    'pyyaml>=3.12,<7.0.0',
+    'pyyaml>=6.0.3,<7.0.0',
     # also update Jinja2 bounds in test-suites/xlang/build.gradle (look for xlangWrapperValidation task)
     "jinja2>=2.7.1,<4.0.0",
     'yapf==0.43.0'