diff --git a/pkgs/development/coq-modules/iris/default.nix b/pkgs/development/coq-modules/iris/default.nix
index 5ccc0f16a24a..faa48096f836 100644
--- a/pkgs/development/coq-modules/iris/default.nix
+++ b/pkgs/development/coq-modules/iris/default.nix
@@ -26,15 +26,15 @@ let
         (case (range "8.11" "8.13") "3.4.0")
         (case (range "8.9" "8.10") "3.3.0")
       ] null;
-    release."4.4.0".sha256 = "sha256-zpuaIdH2ScOuZB0Vt1TEHAbsmcT1DyoDsJpftT1M7qw=";
-    release."4.3.0".sha256 = "sha256-3qhjiFI+A3I3fD8rFfJL5Hek77wScfn/FNNbDyGqA1k=";
-    release."4.2.0".sha256 = "sha256-HuiHIe+5letgr1NN1biZZFq0qlWUbFmoVI7Q91+UIfM=";
-    release."4.1.0".sha256 = "sha256-nTZUeZOXiH7HsfGbMKDE7vGrNVCkbMaWxdMWUcTUNlo=";
-    release."4.0.0".sha256 = "sha256-Jc9TmgGvkiDaz9IOoExyeryU1E+Q37GN24NIM397/Gg=";
-    release."3.6.0".sha256 = "sha256:02vbq597fjxd5znzxdb54wfp36412wz2d4yash4q8yddgl1kakmj";
-    release."3.5.0".sha256 = "0hh14m0anfcv65rxm982ps2vp95vk9fwrpv4br8bxd9vz0091d70";
-    release."3.4.0".sha256 = "0vdc2mdqn5jjd6yz028c0c6blzrvpl0c7apx6xas7ll60136slrb";
-    release."3.3.0".sha256 = "0az4gkp5m8sq0p73dlh0r7ckkzhk7zkg5bndw01bdsy5ywj0vilp";
+    release."4.4.0".hash = "sha256-zpuaIdH2ScOuZB0Vt1TEHAbsmcT1DyoDsJpftT1M7qw=";
+    release."4.3.0".hash = "sha256-3qhjiFI+A3I3fD8rFfJL5Hek77wScfn/FNNbDyGqA1k=";
+    release."4.2.0".hash = "sha256-HuiHIe+5letgr1NN1biZZFq0qlWUbFmoVI7Q91+UIfM=";
+    release."4.1.0".hash = "sha256-nTZUeZOXiH7HsfGbMKDE7vGrNVCkbMaWxdMWUcTUNlo=";
+    release."4.0.0".hash = "sha256-Jc9TmgGvkiDaz9IOoExyeryU1E+Q37GN24NIM397/Gg=";
+    release."3.6.0".hash = "sha256:02vbq597fjxd5znzxdb54wfp36412wz2d4yash4q8yddgl1kakmj";
+    release."3.5.0".hash = "sha256:0hh14m0anfcv65rxm982ps2vp95vk9fwrpv4br8bxd9vz0091d70";
+    release."3.4.0".hash = "sha256:0vdc2mdqn5jjd6yz028c0c6blzrvpl0c7apx6xas7ll60136slrb";
+    release."3.3.0".hash = "sha256:0az4gkp5m8sq0p73dlh0r7ckkzhk7zkg5bndw01bdsy5ywj0vilp";
     releaseRev = v: "iris-${v}";
 
     propagatedBuildInputs = [ stdpp ];