The article “Heterogeneous Catalyst Based on Phosphine-Containing Organic Polymer for Hydroformylation of Octene-1”, written by D. N. Gorbunov, M. V. Nenasheva, R. P. Matsukevich, M. V. Terenina, Yu. S. Kardasheva, and E. A. Karakhanov, was originally published electronically in Springer-Link on 18 March 2021 without Open Access. After publication in volume 61, issue 6, pages 688–696 the authors decided to make the article an Open Access publication. Therefore, the copyright of the article has been changed to © The Author(s) 2021 and the article is forthwith distributed under the terms of a Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/,CCBY),whichpermitsuse,duplication,adaptation,distributionandreproductionofaworkinanymediumorformat,aslongasyoucitetheoriginalauthor(s)andpublicationsource,providealinktotheCreativeCommonslicense,andindicateifchangesweremade.