Another opinion poll showing the Labour lead narrowing

This one is from Kantar, with sampling done between 18-22 May:

LAB: 42% (-3)
CON: 29% (+1)
LDEM: 11% (+2)
GRN: 5% (-2)
REF: 5% (-)

It looks like some of the Green vote is shifting to the LibDems, and the drop in Labour vote is shifting to "Don't know"

source