diff --git a/pkgs/applications/misc/clight/default.nix b/pkgs/applications/misc/clight/default.nix
index e502cd6ccf3..10ddb290204 100644
--- a/pkgs/applications/misc/clight/default.nix
+++ b/pkgs/applications/misc/clight/default.nix
@@ -6,13 +6,13 @@
 
 stdenv.mkDerivation rec {
   pname = "clight";
-  version = "4.2";
+  version = "4.5";
 
   src = fetchFromGitHub {
     owner = "FedeDP";
     repo = "Clight";
     rev = version;
-    sha256 = "sha256-NmfnE6ZWgG9erBmrFFIhutnB1t2Ix/6jo+EeXYVtehg=";
+    sha256 = "sha256-fvi0JGNNDoxE0iH//HneYwQBBP4mY75AeViLHKQUI30=";
   };
 
   # dbus-1.pc has datadir=/etc