In late March 1989, ten months before the Romanian Revolution overthrew communism, Bogza, together with Paleologu, Doinaș, Hăulică, Octavian Paler, Mihail Șora, and Andrei Pleșu, signed the "Letter of the Seven", addressed to Dumitru Radu Popescu (head of the Writers' Union) in protest over poet Mircea Dinescu's house arrest by the Securitate. Yosef Govrin, who served as Israel's Ambassador to Romania during the era, commented on the document, which was sent to members of the diplomatic corps and to other circles: "Despite its restrained style, the letter sharply accused the Writers' Union for not having defended its members and for the alienation rife between Romanian culture and its themes."