diff --git a/pkgs/development/libraries/science/chemistry/openmm/default.nix b/pkgs/development/libraries/science/chemistry/openmm/default.nix
index 723ced8b2a59..f23f59ed5d8f 100644
--- a/pkgs/development/libraries/science/chemistry/openmm/default.nix
+++ b/pkgs/development/libraries/science/chemistry/openmm/default.nix
@@ -19,13 +19,13 @@
 
 stdenv.mkDerivation rec {
   pname = "openmm";
-  version = "8.1.1";
+  version = "8.1.2";
 
   src = fetchFromGitHub {
     owner = "openmm";
     repo = pname;
     rev = version;
-    hash = "sha256-pYWBniV1J+UZBOPPjuUxVevONHaclo+GvGBEpr7Zmxg=";
+    hash = "sha256-2UFccB+xXAw3uRw0G1TKlqTVl9tUl1sRPFG4H05vq04=";
   };
 
   # "This test is stochastic and may occassionally fail". It does.