diff --git a/requirements-dev.txt b/requirements-dev.txt
index 845f0c1a1..f0db1825e 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -254,7 +254,7 @@ google-auth==2.29.0
     #   -r requirements-tests.txt
     #   google-api-core
     #   google-cloud-private-ca
-google-cloud-private-ca==1.12.2
+google-cloud-private-ca==1.13.1
     # via -r requirements-tests.txt
 googleapis-common-protos[grpc]==1.63.0
     # via
diff --git a/requirements-docs.txt b/requirements-docs.txt
index b543c2ea1..a194cd086 100644
--- a/requirements-docs.txt
+++ b/requirements-docs.txt
@@ -286,7 +286,7 @@ google-auth==2.29.0
     #   -r requirements-tests.txt
     #   google-api-core
     #   google-cloud-private-ca
-google-cloud-private-ca==1.12.2
+google-cloud-private-ca==1.13.1
     # via -r requirements-tests.txt
 googleapis-common-protos[grpc]==1.63.0
     # via
diff --git a/requirements-tests.txt b/requirements-tests.txt
index f6d8f30f6..0134e92b0 100644
--- a/requirements-tests.txt
+++ b/requirements-tests.txt
@@ -230,7 +230,7 @@ google-auth==2.29.0
     #   -r requirements.txt
     #   google-api-core
     #   google-cloud-private-ca
-google-cloud-private-ca==1.12.2
+google-cloud-private-ca==1.13.1
     # via -r requirements.txt
 googleapis-common-protos[grpc]==1.63.0
     # via
diff --git a/requirements.txt b/requirements.txt
index c1648b30d..13a08b5bc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -139,7 +139,7 @@ google-auth==2.29.0
     # via
     #   google-api-core
     #   google-cloud-private-ca
-google-cloud-private-ca==1.12.2
+google-cloud-private-ca==1.13.1
     # via -r requirements.in
 googleapis-common-protos[grpc]==1.63.0
     # via