diff --git a/requirements-dev.in b/requirements-dev.in
index 6507c100..d1e739cd 100644
--- a/requirements-dev.in
+++ b/requirements-dev.in
@@ -27,7 +27,7 @@ cachetools==5.5.2
     #   -c requirements.txt
     #   google-auth
     #   tox
-cattrs==24.1.2
+cattrs==24.1.3
     # via
     #   -c requirements.txt
     #   mozilla-metric-config-parser
diff --git a/requirements-dev.txt b/requirements-dev.txt
index ec03616e..3058720b 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -38,9 +38,9 @@ cachetools==5.5.2 \
     #   -r requirements-dev.in
     #   google-auth
     #   tox
-cattrs==24.1.2 \
-    --hash=sha256:67c7495b760168d931a10233f979b28dc04daf853b30752246f4f8471c6d68d0 \
-    --hash=sha256:8028cfe1ff5382df59dd36474a86e02d817b06eaf8af84555441bac915d2ef85
+cattrs==24.1.3 \
+    --hash=sha256:981a6ef05875b5bb0c7fb68885546186d306f10f0f6718fe9b96c226e68821ff \
+    --hash=sha256:adf957dddd26840f27ffbd060a6c4dd3b2192c5b7c2c0525ef1bd8131d8a83f5
     # via
     #   -r requirements-dev.in
     #   mozilla-metric-config-parser
diff --git a/requirements.in b/requirements.in
index 9a45e599..9ea1e87d 100644
--- a/requirements.in
+++ b/requirements.in
@@ -15,7 +15,7 @@ attrs==25.3.0
     #   referencing
 cachetools==5.5.2
     # via google-auth
-cattrs==24.1.2
+cattrs==24.1.3
     # via mozilla-metric-config-parser
 certifi==2025.1.31
     # via requests
diff --git a/requirements.txt b/requirements.txt
index 8c0fcd9e..283f90ee 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,9 +25,9 @@ cachetools==5.5.2 \
     # via
     #   -r requirements.in
     #   google-auth
-cattrs==24.1.2 \
-    --hash=sha256:67c7495b760168d931a10233f979b28dc04daf853b30752246f4f8471c6d68d0 \
-    --hash=sha256:8028cfe1ff5382df59dd36474a86e02d817b06eaf8af84555441bac915d2ef85
+cattrs==24.1.3 \
+    --hash=sha256:981a6ef05875b5bb0c7fb68885546186d306f10f0f6718fe9b96c226e68821ff \
+    --hash=sha256:adf957dddd26840f27ffbd060a6c4dd3b2192c5b7c2c0525ef1bd8131d8a83f5
     # via
     #   -r requirements.in
     #   mozilla-metric-config-parser