diff --git a/temporal_capi/bindings/c/AnyCalendarKind.d.h b/temporal_capi/bindings/c/AnyCalendarKind.d.h
index e138f882e..23505aa78 100644
--- a/temporal_capi/bindings/c/AnyCalendarKind.d.h
+++ b/temporal_capi/bindings/c/AnyCalendarKind.d.h
@@ -12,19 +12,19 @@
 
 
 typedef enum AnyCalendarKind {
-  AnyCalendarKind_Buddhist = 0,
-  AnyCalendarKind_Chinese = 1,
-  AnyCalendarKind_Coptic = 2,
-  AnyCalendarKind_Dangi = 3,
-  AnyCalendarKind_Ethiopian = 4,
-  AnyCalendarKind_EthiopianAmeteAlem = 5,
-  AnyCalendarKind_Gregorian = 6,
-  AnyCalendarKind_Hebrew = 7,
-  AnyCalendarKind_Indian = 8,
-  AnyCalendarKind_HijriTabularTypeIIFriday = 9,
-  AnyCalendarKind_HijriTabularTypeIIThursday = 10,
-  AnyCalendarKind_HijriUmmAlQura = 11,
-  AnyCalendarKind_Iso = 12,
+  AnyCalendarKind_Iso = 0,
+  AnyCalendarKind_Buddhist = 1,
+  AnyCalendarKind_Chinese = 2,
+  AnyCalendarKind_Coptic = 3,
+  AnyCalendarKind_Dangi = 4,
+  AnyCalendarKind_Ethiopian = 5,
+  AnyCalendarKind_EthiopianAmeteAlem = 6,
+  AnyCalendarKind_Gregorian = 7,
+  AnyCalendarKind_Hebrew = 8,
+  AnyCalendarKind_Indian = 9,
+  AnyCalendarKind_HijriTabularTypeIIFriday = 10,
+  AnyCalendarKind_HijriTabularTypeIIThursday = 11,
+  AnyCalendarKind_HijriUmmAlQura = 12,
   AnyCalendarKind_Japanese = 13,
   AnyCalendarKind_JapaneseExtended = 14,
   AnyCalendarKind_Persian = 15,
diff --git a/temporal_capi/bindings/cpp/temporal_rs/AnyCalendarKind.d.hpp b/temporal_capi/bindings/cpp/temporal_rs/AnyCalendarKind.d.hpp
index 760ee856f..fe00577f0 100644
--- a/temporal_capi/bindings/cpp/temporal_rs/AnyCalendarKind.d.hpp
+++ b/temporal_capi/bindings/cpp/temporal_rs/AnyCalendarKind.d.hpp
@@ -19,19 +19,19 @@ class AnyCalendarKind;
 namespace temporal_rs {
 namespace capi {
     enum AnyCalendarKind {
-      AnyCalendarKind_Buddhist = 0,
-      AnyCalendarKind_Chinese = 1,
-      AnyCalendarKind_Coptic = 2,
-      AnyCalendarKind_Dangi = 3,
-      AnyCalendarKind_Ethiopian = 4,
-      AnyCalendarKind_EthiopianAmeteAlem = 5,
-      AnyCalendarKind_Gregorian = 6,
-      AnyCalendarKind_Hebrew = 7,
-      AnyCalendarKind_Indian = 8,
-      AnyCalendarKind_HijriTabularTypeIIFriday = 9,
-      AnyCalendarKind_HijriTabularTypeIIThursday = 10,
-      AnyCalendarKind_HijriUmmAlQura = 11,
-      AnyCalendarKind_Iso = 12,
+      AnyCalendarKind_Iso = 0,
+      AnyCalendarKind_Buddhist = 1,
+      AnyCalendarKind_Chinese = 2,
+      AnyCalendarKind_Coptic = 3,
+      AnyCalendarKind_Dangi = 4,
+      AnyCalendarKind_Ethiopian = 5,
+      AnyCalendarKind_EthiopianAmeteAlem = 6,
+      AnyCalendarKind_Gregorian = 7,
+      AnyCalendarKind_Hebrew = 8,
+      AnyCalendarKind_Indian = 9,
+      AnyCalendarKind_HijriTabularTypeIIFriday = 10,
+      AnyCalendarKind_HijriTabularTypeIIThursday = 11,
+      AnyCalendarKind_HijriUmmAlQura = 12,
       AnyCalendarKind_Japanese = 13,
       AnyCalendarKind_JapaneseExtended = 14,
       AnyCalendarKind_Persian = 15,
@@ -46,26 +46,26 @@ namespace temporal_rs {
 class AnyCalendarKind {
 public:
     enum Value {
-        Buddhist = 0,
-        Chinese = 1,
-        Coptic = 2,
-        Dangi = 3,
-        Ethiopian = 4,
-        EthiopianAmeteAlem = 5,
-        Gregorian = 6,
-        Hebrew = 7,
-        Indian = 8,
-        HijriTabularTypeIIFriday = 9,
-        HijriTabularTypeIIThursday = 10,
-        HijriUmmAlQura = 11,
-        Iso = 12,
+        Iso = 0,
+        Buddhist = 1,
+        Chinese = 2,
+        Coptic = 3,
+        Dangi = 4,
+        Ethiopian = 5,
+        EthiopianAmeteAlem = 6,
+        Gregorian = 7,
+        Hebrew = 8,
+        Indian = 9,
+        HijriTabularTypeIIFriday = 10,
+        HijriTabularTypeIIThursday = 11,
+        HijriUmmAlQura = 12,
         Japanese = 13,
         JapaneseExtended = 14,
         Persian = 15,
         Roc = 16,
     };
 
-    AnyCalendarKind(): value(Value::Buddhist) {}
+    AnyCalendarKind(): value(Value::Iso) {}
 
     // Implicit conversions between enum and ::Value
     constexpr AnyCalendarKind(Value v) : value(v) {}
diff --git a/temporal_capi/bindings/cpp/temporal_rs/AnyCalendarKind.hpp b/temporal_capi/bindings/cpp/temporal_rs/AnyCalendarKind.hpp
index 94007ae30..3c5aab6bf 100644
--- a/temporal_capi/bindings/cpp/temporal_rs/AnyCalendarKind.hpp
+++ b/temporal_capi/bindings/cpp/temporal_rs/AnyCalendarKind.hpp
@@ -34,6 +34,7 @@ inline temporal_rs::capi::AnyCalendarKind temporal_rs::AnyCalendarKind::AsFFI()
 
 inline temporal_rs::AnyCalendarKind temporal_rs::AnyCalendarKind::FromFFI(temporal_rs::capi::AnyCalendarKind c_enum) {
     switch (c_enum) {
+        case temporal_rs::capi::AnyCalendarKind_Iso:
         case temporal_rs::capi::AnyCalendarKind_Buddhist:
         case temporal_rs::capi::AnyCalendarKind_Chinese:
         case temporal_rs::capi::AnyCalendarKind_Coptic:
@@ -46,7 +47,6 @@ inline temporal_rs::AnyCalendarKind temporal_rs::AnyCalendarKind::FromFFI(tempor
         case temporal_rs::capi::AnyCalendarKind_HijriTabularTypeIIFriday:
         case temporal_rs::capi::AnyCalendarKind_HijriTabularTypeIIThursday:
         case temporal_rs::capi::AnyCalendarKind_HijriUmmAlQura:
-        case temporal_rs::capi::AnyCalendarKind_Iso:
         case temporal_rs::capi::AnyCalendarKind_Japanese:
         case temporal_rs::capi::AnyCalendarKind_JapaneseExtended:
         case temporal_rs::capi::AnyCalendarKind_Persian:
diff --git a/temporal_capi/src/calendar.rs b/temporal_capi/src/calendar.rs
index b06dce941..2160faec7 100644
--- a/temporal_capi/src/calendar.rs
+++ b/temporal_capi/src/calendar.rs
@@ -8,6 +8,7 @@ pub mod ffi {
 
     #[diplomat::enum_convert(icu_calendar::AnyCalendarKind, needs_wildcard)]
     pub enum AnyCalendarKind {
+        Iso,
         Buddhist,
         Chinese,
         Coptic,
@@ -20,7 +21,6 @@ pub mod ffi {
         HijriTabularTypeIIFriday,
         HijriTabularTypeIIThursday,
         HijriUmmAlQura,
-        Iso,
         Japanese,
         JapaneseExtended,
         Persian,