OpenGL 2.1 with HD3000 and Mesa 9.0.1

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I'm running Fedora 18; my GPU is the Intel HD 3000 and have the Mesa 9.0.1 installed. Normally I should be able to have OpenGL 3.1 but I'm stuck with version 2.1. What am I missing here?

Output of glxinfo:

OpenGL vendor string: Intel Open Source Technology Center

OpenGL renderer string: Mesa DRI Intel(R) Sandybridge Mobile

OpenGL version string: 2.1 Mesa 9.0.1

OpenGL shading language version string: 1.30