According to the State Geo Cadastre of Ukraine, 98.4% of topographic maps reflect information from more than 10 years ago, and 70.3% of maps show the state of the terrain from more than 20 years ago. This negative situation with the provision of cartographic materials has become particularly noticeable since the beginning of the war, which has been going on in Ukraine for almost two years. The purpose of this paper is to study the temporal changes in topographic information of 1:50,000 scale maps, which is an urgent and very important scientific and practical task. The object of the study is the territory of Rivne city and its outskirts within two nomenclature sheets of the 1:50,000 map. The changes in topographic information that occurred between 1979 and 2021 were analysed. A digital vector map of the area was created in ArcGIS Pro software from a 1979 map using raster scanning technology. The data was updated based on satellite imagery of 11.06.2021. The results of the research indicate intensive temporal changes in topographic information - almost 50% of the territory has changed over 42 years. There has been an aggressive expansion of settlements into the surrounding agricultural land - towns and villages have more than doubled their territory. The rate of change in topographic information is 2.3 square kilometres per year. This applies to maps with a scale of 1:50,000. On maps of larger scale, such changes occur much faster. Therefore, in order to keep the information on topographic maps up-to-date, a differentiated approach to the frequency of map updates is proposed, depending on the scale and territory. Recommendations on update periods require further research for other map scales and different territories.