The fast-changing digital environment in this post covid era is pressured by the changing user need and behavior and this is changing the operational landscape and role of libraries in becoming more digital bound. University library management in Nigeria are now investing in emerging technology and this brings an urgent need for digital skills development of the library's workforce. This study therefore explored the current digital skills gap and the existing training programs available to library professionals in Nigeria. This study adopted a survey design using a quantitative procedure to collect information through questionnaire. A multi-stage sampling technique was used to sample 453 professionals and paraprofessionals in university libraries in Nigeria. Finding revealed that the university library professionals in Nigeria possess the basic digital skills to use technology for their day-to-day activities but lack some digital skills to carry out some operational tasks especially serials, acquisition and some cataloging tasks using z39 and OCLC. Also, this study found that in-house training is the only pathway available for digital skills development for library professionals. Other pathways for digital skills development such as conferences, workshops, self-sponsored training etc. are not expert programs geared towards digital skills development. Recommendations were made to library staff and management to re-harness the existing training programs towards expert programs geared towards digital skills development on the identified digital skills gap of this study.