diff --git a/flake.lock b/flake.lock
index fd041eb77..b3e3be2cd 100644
--- a/flake.lock
+++ b/flake.lock
@@ -120,16 +120,16 @@
         ]
       },
       "locked": {
-        "lastModified": 1729686641,
-        "narHash": "sha256-LuhI4IRoAMFGVeoPobegWRV7lRu/W2CLzTSB3jMnp0o=",
+        "lastModified": 1729715336,
+        "narHash": "sha256-e4515vXk5qzIITnYvcUK3kbC37S8S0PMbqv56ld5OAU=",
         "owner": "runtimeverification",
         "repo": "k",
-        "rev": "516dbf2c181e21534cf98c3c7c7be916ad5088ce",
+        "rev": "5d1ccd5a2585cbec970c68f8530ddbf2b27fe574",
         "type": "github"
       },
       "original": {
         "owner": "runtimeverification",
-        "ref": "v7.1.165",
+        "ref": "v7.1.166",
         "repo": "k",
         "type": "github"
       }
diff --git a/flake.nix b/flake.nix
index 3ccaf1b82..e6aa079c9 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,7 +1,7 @@
 {
   description = "mir-semantics - ";
   inputs = {
-    k-framework.url = "github:runtimeverification/k/v7.1.165";
+    k-framework.url = "github:runtimeverification/k/v7.1.166";
     nixpkgs.follows = "k-framework/nixpkgs";
     flake-utils.follows = "k-framework/flake-utils";
     rv-utils.follows = "k-framework/rv-utils";