feelfree:

I give the following example to illustrate my question.

I plan to install Libpng 16 on my Ubuntu machine with the following command: conda install libpng. However, this will update the following packages:

    cairo:        1.12.18-3         --> 1.12.18-6         
    fontconfig:   2.11.1-3          --> 2.11.1-6          
    freetype:     2.5.2-1           --> 2.5.5-2           
    libgfortran:  1.0-0             --> 3.0.0-1           
    libpng:       1.5.13-1          --> 1.6.27-0          
    numpy:        1.8.2-py27_1      --> 1.11.3-py27_0     
    opencv:       2.4.9-np18py27_0  --> 3.1.0-np111py27_1 
    pixman:       0.26.2-0          --> 0.32.6-0          
    scikit-image: 0.9.3-np18py27_0  --> 0.13.0-np111py27_0
    scipy:        0.14.0-np18py27_0 --> 0.19.0-np111py27_0

I do not want to update these libraries for some reasons. May it be possible that libpng will be updated alone?