diff --git a/pkgs/development/tools/analysis/frama-c/default.nix b/pkgs/development/tools/analysis/frama-c/default.nix
index f8e5cf8b996..179a74c56d5 100644
--- a/pkgs/development/tools/analysis/frama-c/default.nix
+++ b/pkgs/development/tools/analysis/frama-c/default.nix
@@ -23,12 +23,12 @@ in
 
 stdenv.mkDerivation rec {
   pname = "frama-c";
-  version = "21.0";
+  version = "21.1";
   slang   = "Scandium";
 
   src = fetchurl {
     url    = "http://frama-c.com/download/frama-c-${version}-${slang}.tar.gz";
-    sha256 = "0xqkyrvkr31r6443zgf4f749a1mf2360v8f0km071a1za767yvf5";
+    sha256 = "0qq0d08dzr0dmdjysiimdqmwlzgnn932vp5kf8lfn3nl45ai09dy";
   };
 
   preConfigure = lib.optionalString stdenv.cc.isClang "configureFlagsArray=(\"--with-cpp=clang -E -C\")";