diff --git a/pkgs/development/compilers/yosys/default.nix b/pkgs/development/compilers/yosys/default.nix
index a312114e6abd..43e941824fa7 100644
--- a/pkgs/development/compilers/yosys/default.nix
+++ b/pkgs/development/compilers/yosys/default.nix
@@ -75,13 +75,13 @@ let
 
 in stdenv.mkDerivation (finalAttrs: {
   pname   = "yosys";
-  version = "0.44";
+  version = "0.45";
 
   src = fetchFromGitHub {
     owner = "YosysHQ";
     repo  = "yosys";
-    rev   = "refs/tags/yosys-${finalAttrs.version}";
-    hash  = "sha256-aMVWmryMbVlEm1RNj1ENpLHOpuKRQTJMFZCn+WuaR04=";
+    rev   = "refs/tags/${finalAttrs.version}";
+    hash  = "sha256-NF4NQ7mCfARuMsMTJVBbJk39puJ8+D41woYEPgthfUI=";
     fetchSubmodules = true;
     leaveDotGit = true;
     postFetch = ''