diff --git a/flake.lock b/flake.lock
index 82e8933..4e27d13 100644
--- a/flake.lock
+++ b/flake.lock
@@ -7,11 +7,11 @@
         "nixpkgs": "nixpkgs"
       },
       "locked": {
-        "lastModified": 1750731092,
-        "narHash": "sha256-Fu4lFidcFBEoFaevUwf4Vkb3Jv+ZbPuN82NZCFEym8g=",
+        "lastModified": 1755522139,
+        "narHash": "sha256-a650biN/2i36oG5TJVndTklSz50vNuoLFMh67fVvqWQ=",
         "owner": "bellroy",
         "repo": "bellroy-nix-foss",
-        "rev": "fbbc4fed2d812e8417857ffc9451d7c6f1242d43",
+        "rev": "72c4b556f2859a984a1eafed20bcb2027bf8d675",
         "type": "github"
       },
       "original": {
@@ -23,11 +23,11 @@
     "flake-compat": {
       "flake": false,
       "locked": {
-        "lastModified": 1696426674,
-        "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
+        "lastModified": 1747046372,
+        "narHash": "sha256-CIVLLkVgvHYbgI2UpXvIIBJ12HWgX+fjA8Xf8PUmqCY=",
         "owner": "edolstra",
         "repo": "flake-compat",
-        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
+        "rev": "9100a0f413b0c601e0533d1d94ffd501ce2e7885",
         "type": "github"
       },
       "original": {
@@ -64,11 +64,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1750684550,
-        "narHash": "sha256-uLtw0iF9mQ94L831NOlQLPX9wm0qzd5yim3rcwACEoM=",
+        "lastModified": 1755446520,
+        "narHash": "sha256-I0Ok1OGDwc1jPd8cs2VvAYZsHriUVFGIUqW+7uSsOUM=",
         "owner": "cachix",
         "repo": "git-hooks.nix",
-        "rev": "fae816c55a75675f30d18c9cbdecc13b970d95d4",
+        "rev": "4b04db83821b819bbbe32ed0a025b31e7971f22e",
         "type": "github"
       },
       "original": {
@@ -101,11 +101,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1750605355,
-        "narHash": "sha256-xT8cPLTxlktxI9vSdoBlAVK7dXgd8IK59j7ZwzkkhnI=",
+        "lastModified": 1755268003,
+        "narHash": "sha256-nNaeJjo861wFR0tjHDyCnHs1rbRtrMgxAKMoig9Sj/w=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "3078b9a9e75f1790e6d6ef9955fdc6a2d1740cc6",
+        "rev": "32f313e49e42f715491e1ea7b306a87c16fe0388",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 4fe8892..5aea316 100644
--- a/flake.nix
+++ b/flake.nix
@@ -11,6 +11,7 @@
         "ghc96"
         "ghc98"
         "ghc910"
+        "ghc912"
       ];
       defaultCompiler = "ghc910";
     };
diff --git a/github-actions.cabal b/github-actions.cabal
index 9576838..ac03610 100644
--- a/github-actions.cabal
+++ b/github-actions.cabal
@@ -24,7 +24,7 @@ extra-source-files:
   test/golden/configuration-main.hs.txt
   test/golden/configuration-main.yml
 
-tested-with:        GHC ==9.6.6 || ==9.8.2 || ==9.10.1
+tested-with:        GHC ==9.6.6 || ==9.8.2 || ==9.10.1 || ==9.12.1
 
 common opts
   default-language: Haskell2010
@@ -82,7 +82,7 @@ test-suite spec
   other-modules:      Language.Github.Actions.WorkflowTest
   build-tool-depends: tasty-discover:tasty-discover ^>=4.2.2
   build-depends:
-    , bytestring          ==0.11.5.3  || ==0.12.1.0
+    , bytestring          ^>=0.11.4.0 || ^>=0.12.0.2
     , filepath            ^>=1.4      || ^>=1.5
     , github-actions
     , pretty-show         ^>=1.10