[requirements] Update requirements for stdnum

Change-Id: Ic25b0d9e731563553e72d00cc520e24ee4d7007d
---
M setup.py
M requirements.txt
2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/requirements.txt b/requirements.txt
index f4095df..9d0fd0e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -37,7 +37,7 @@
 pydot >= 1.4.1
 
 # cosmetic_changes
-python-stdnum >= 1.18
+python-stdnum >= 1.19
 
 # GUI
 Pillow >= 8.1.2, < 10.0.0; platform_machine == 'AMD32'
diff --git a/setup.py b/setup.py
index eb49071..609e4e2 100755
--- a/setup.py
+++ b/setup.py
@@ -39,7 +39,7 @@
 extra_deps = {
     # Core library dependencies
     'eventstreams': ['sseclient<0.0.23,>=0.0.18'],  # T222885
-    'isbn': ['python-stdnum>=1.18'],
+    'isbn': ['python-stdnum>=1.19'],
     'Graphviz': ['pydot>=1.4.1'],
     'Google': ['google>=1.7'],
     'memento': ['memento_client==0.6.1'],

