Introduction and objective:
Over the years, one can see how much the occupation of the nurse has developed. Nurses strive to increase their competences. This involves an increasing desire for a sense of job security and satisfaction. To achieve this goal, it is necessary to systematically improve their education and update their knowledge, which guarantees the improvement of work conditions improves patient care in an informed and safe manner. The aim of the study was to analyze and evaluate nurses› opinions concerning the impact of upgrading professional qualifications on job satisfaction and feelings of security at work.

Material and methods:
The analysis involved 344 respondents who completed an author-constructed online questionnaire, using the social networking platform Facebook. A self-administered questionnaire was applied, consisting of 24 items contained in two parts. Part one was used to present the study group in terms of sociodemographic characteristics, such as age, length of service, or education. The second part consisted of questions concerning, among others, the nurses' feeling of satisfaction and job security.

Results:
Analysis of the opinions of the surveyed nurses showed that the majority (27.9%) rated their work satisfaction at 8 scores according to a 10-degree scale (48.8%), were eager to improve their qualifications and presented an ambitional approach. Only 0.9% indicated a very poor sense of own security.

Conclusions:
The selected types of postgraduate education course significantly affect nurses› sense of satisfaction and job security. An increase in age and work experience do not exert a motivational effect on respondents› willingness to upgrade their education.