Maven doesn't show newer artifact versions

I have a dependency in my pom.xml:

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter</artifactId>
    <version>1.3.3-RELEASE</version>
</dependency>

when I try autocomplete to see which versions are available, the most recent is 1.4.3-RELEASE, which was released at 2016-12-23 (according to http://repo.maven.apache.org/maven2/org/springframework/boot/spring-boot-starter/), and I can't see newer releases (there should be at least 3 of them, listed in http://repo.maven.apache.org/maven2/org/springframework/boot/spring-boot-starter/maven-metadata.xml).

I tried running "Update" in Maven repositories in Preferences twice, also tried restarting, it doesn't help.