nvcc version remains the same after updating the CUDA Toolkit version

I installed CUDA Toolkit 12.6 Update 1 in Ubuntu 22.04 using the command below (instructions are found here):

wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2204/x86_64/cuda-ubuntu2204.pinsudo mv cuda-ubuntu2204.pin /etc/apt/preferences.d/cuda-repository-pin-600wget https://developer.download.nvidia.com/compute/cuda/12.6.1/local_installers/cuda-repo-ubuntu2204-12-6-local_12.6.1-560.35.03-1_amd64.debsudo dpkg -i cuda-repo-ubuntu2204-12-6-local_12.6.1-560.35.03-1_amd64.debsudo cp /var/cuda-repo-ubuntu2204-12-6-local/cuda-*-keyring.gpg /usr/share/keyrings/sudo apt-get updatesudo apt-get -y install cuda-toolkit-12-6

The installation is successful. However, the nvcc version is still 11.5. Here are 2 packages I installed. I thought installing the CUDA Toolkit 12.6 would replace 11.5, but the NVCC still comes from 11.5.

$ dpkg -l nvidia-cuda-toolkitDesired=Unknown/Install/Remove/Purge/Hold| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)||/ Name                Version         Architecture Description+++-===================-===============-============-=================================ii  nvidia-cuda-toolkit 11.5.1-1ubuntu1 amd64        NVIDIA CUDA development toolkit$ dpkg -l cuda-toolkit-12-6Desired=Unknown/Install/Remove/Purge/Hold| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)||/ Name              Version      Architecture Description+++-=================-============-============-=================================ii  cuda-toolkit-12-6 12.6.1-1     amd64        CUDA Toolkit 12.6 meta-package

How can I update the nvcc version to 12.6?

Here is the output of nvcc -V:

$ nvcc -Vnvcc: NVIDIA (R) Cuda compiler driverCopyright (c) 2005-2021 NVIDIA CorporationBuilt on Thu_Nov_18_09:45:30_PST_2021Cuda compilation tools, release 11.5, V11.5.119Build cuda_11.5.r11.5/compiler.30672275_0

Listing out the contents of the cuda-toolkit-12-6, it does not include the nvcc:

$ dpkg -L cuda-toolkit-12-6/./usr/usr/local/usr/local/cuda-12.6/usr/local/cuda-12.6/version.json/usr/share/usr/share/doc/usr/share/doc/cuda-toolkit-12-6/usr/share/doc/cuda-toolkit-12-6/changelog.Debian.gz

Output of nvidia-smi:

$ nvidia-smiMon Sep 23 13:11:55 2024       +---------------------------------------------------------------------------------------+| NVIDIA-SMI 535.183.01             Driver Version: 535.183.01   CUDA Version: 12.2     ||-----------------------------------------+----------------------+----------------------+| GPU  Name                 Persistence-M | Bus-Id        Disp.A | Volatile Uncorr. ECC || Fan  Temp   Perf          Pwr:Usage/Cap |         Memory-Usage | GPU-Util  Compute M. ||                                         |                      |               MIG M. ||=========================================+======================+======================||   0  NVIDIA GeForce RTX 4090        Off | 00000000:81:00.0 Off |                  Off ||  0%   24C    P8              21W / 450W |  10893MiB / 24564MiB |      0%      Default ||                                         |                      |                  N/A |+-----------------------------------------+----------------------+----------------------+|   1  NVIDIA GeForce RTX 4090        Off | 00000000:C1:00.0 Off |                  Off ||  0%   24C    P8              32W / 450W |    818MiB / 24564MiB |      0%      Default ||                                         |                      |                  N/A |+-----------------------------------------+----------------------+----------------------++---------------------------------------------------------------------------------------+| Processes:                                                                            ||  GPU   GI   CI        PID   Type   Process name                            GPU Memory ||        ID   ID                                                             Usage      ||=======================================================================================||    0   N/A  N/A      1720      G   /usr/lib/xorg/Xorg                            4MiB ||    0   N/A  N/A      2174      C   /usr/local/bin/ollama                       384MiB ||    0   N/A  N/A   1808406      C   /opt/tljh/user/bin/python                 10486MiB ||    1   N/A  N/A      1720      G   /usr/lib/xorg/Xorg                           15MiB ||    1   N/A  N/A      1896      G   /usr/bin/gnome-shell                         10MiB ||    1   N/A  N/A      2174      C   /usr/local/bin/ollama                       384MiB ||    1   N/A  N/A   1808406      C   /opt/tljh/user/bin/python                   386MiB |+---------------------------------------------------------------------------------------+