diff --git a/src/workspaces/hooks/src/useSessionState.ts b/src/workspaces/hooks/src/useSessionState.ts
index 5fcf7053..1b561faa 100644
--- a/src/workspaces/hooks/src/useSessionState.ts
+++ b/src/workspaces/hooks/src/useSessionState.ts
@@ -76,6 +76,8 @@ export function useSessionState<T>(key: string, initialValue: T) {
   valueRef.current = value;
   const setGlobalRef = useRef(setGlobal);
   setGlobalRef.current = setGlobal;
+  const initialValueRef = useRef(initialValue);
+  initialValueRef.current = initialValue;
 
   const setValue = useCallback(
     (arg: React.SetStateAction<T>) => {
@@ -86,11 +88,11 @@ export function useSessionState<T>(key: string, initialValue: T) {
     [key],
   );
 
+  // Read through the ref, not the closure: resetting means "whatever the default is now", and a
+  // `useCallback` over `initialValue` would freeze the default from the render that built the callback.
   const reset = useCallback(() => {
     clearSessionValue(key);
-    setGlobalRef.current(initialValue);
-    // `initialValue` is read at reset time on purpose: resetting means "whatever the default is now".
-    // eslint-disable-next-line react-hooks/exhaustive-deps
+    setGlobalRef.current(initialValueRef.current);
   }, [key]);
 
   return [value, setValue, reset] as const;