diff --git a/update.sh b/update.sh
index a7cd62ae..52c774cd 100755
--- a/update.sh
+++ b/update.sh
@@ -4,7 +4,6 @@ set -e
 declare -A gpgKeys=(
 	[7.0]='1A4E8B7277C42E53DBA9C7B9BCAA30EA9C0D5763'
 	[5.6]='0BD78B5F97500D450838F95DFE857D9A90D90EC1 6E4F6AB321FDC07F2C332E3AC2BF0BC433CFC8B3'
-	[5.5]='0B96609E270F565C13292B24C13C70B87267B52D 0BD78B5F97500D450838F95DFE857D9A90D90EC1 F38252826ACD957EF380D39F2F7956BC5DA04B5D'
 )
 # see https://secure.php.net/downloads.php