diff --git a/pkgs/development/coq-modules/coquelicot/default.nix b/pkgs/development/coq-modules/coquelicot/default.nix
index 76fb985c2c01..90ea6d629466 100644
--- a/pkgs/development/coq-modules/coquelicot/default.nix
+++ b/pkgs/development/coq-modules/coquelicot/default.nix
@@ -7,13 +7,14 @@ mkCoqDerivation {
   domain = "gitlab.inria.fr";
   inherit version;
   defaultVersion = with lib.versions; lib.switch coq.coq-version [
-    { case = range "8.12" "8.19"; out = "3.4.1"; }
+    { case = range "8.12" "8.20"; out = "3.4.2"; }
     { case = range "8.12" "8.18"; out = "3.4.0"; }
     { case = range "8.12" "8.17"; out = "3.3.0"; }
     { case = range "8.8" "8.16"; out = "3.2.0"; }
     { case = range "8.8" "8.13"; out = "3.1.0"; }
     { case = range "8.5" "8.9";  out = "3.0.2"; }
   ] null;
+  release."3.4.2".sha256 = "sha256-aBTF8ZKu67Rb3ryCqFyejUXf/65KgG8i5je/ZMFSrj4=";
   release."3.4.1".sha256 = "sha256-REhvIBl3EaL8CQqI34Gn7Xjf9NhPI3nrUAO26pSLbm0=";
   release."3.4.0".sha256 = "sha256-LIj2SwTvVBxSAO58VYCQix/uxQQe8ey6hqFOSh3PNcg=";
   release."3.3.1".sha256 = "sha256-YCvd4aIt2BxLKBYSWzN7aqo0AuY7z8oADmKvybhYBQI=";