diff --git a/homeassistant/package_constraints.txt b/homeassistant/package_constraints.txt
index ac484a5d5d0..69072254537 100644
--- a/homeassistant/package_constraints.txt
+++ b/homeassistant/package_constraints.txt
@@ -213,3 +213,6 @@ multidict>=6.4.2
 # Stable Alpine current only ships cargo 1.83.0
 # No wheels upstream available for armhf & armv7
 rpds-py==0.24.0
+
+# Constraint num2words to 0.5.14 as 0.5.15 and 0.5.16 were removed from PyPI
+num2words==0.5.14
diff --git a/script/gen_requirements_all.py b/script/gen_requirements_all.py
index 13bb3384258..779393d2c79 100755
--- a/script/gen_requirements_all.py
+++ b/script/gen_requirements_all.py
@@ -239,6 +239,9 @@ multidict>=6.4.2
 # Stable Alpine current only ships cargo 1.83.0
 # No wheels upstream available for armhf & armv7
 rpds-py==0.24.0
+
+# Constraint num2words to 0.5.14 as 0.5.15 and 0.5.16 were removed from PyPI
+num2words==0.5.14
 """
 
 GENERATED_MESSAGE = (