USD as Reserves Currency Drops to 25-Year Low

Excerpt:

"During periods of US dollar weakness against major currencies, the US dollar’s share of global reserves generally declines since the US dollar value of reserves denominated in other currencies increases (and vice versa in times of US dollar strength). In turn, US dollar exchange rates can be influenced by several factors, including diverging economic paths between the United States and other economies, differences in monetary and fiscal policies, as well as foreign exchange sales and purchases by central banks."

https://blogs.imf.org/2021/05/05/us-dollar-share-of-global-foreign-exchange-reserves-drops-to-25-year-low/

Source - IMF Blog