diff --git a/README.md b/README.md
index ba5804d..6c7eaa3 100644
--- a/README.md
+++ b/README.md
@@ -51,7 +51,7 @@ jobs:
     steps:
       - uses: actions/checkout@v7.0.0
       - uses: DeterminateSystems/determinate-nix-action@v3
-      - uses: DeterminateSystems/flakehub-cache-action@v3 # or v3.21.5 to pin to a release
+      - uses: DeterminateSystems/flakehub-cache-action@v3 # or v3.21.7 to pin to a release
       - run: nix build .
 ```
 
@@ -65,7 +65,7 @@ jobs:
 Unlike `DeterminateSystems/magic-nix-cache-action`, we fully support explicit version pinning for maximum consistency.
 This Action is **automatically tagged** for every release, giving you complete control over your CI environment:
 
-📍 Pinning to `DeterminateSystems/flakehub-cache-action@v3.21.5` guarantees:
+📍 Pinning to `DeterminateSystems/flakehub-cache-action@v3.21.7` guarantees:
 
 - Same `flakehub-cache-action` revision every time
 - Reproducible CI workflows, even years later
diff --git a/action.yml b/action.yml
index baf0843..9f45670 100644
--- a/action.yml
+++ b/action.yml
@@ -88,7 +88,7 @@
         "using": "composite",
         "steps": [
             {
-                "uses": "DeterminateSystems/magic-nix-cache-action@76aaf8814cdb385b86597c32b8c51b66b69b0839",
+                "uses": "DeterminateSystems/magic-nix-cache-action@55718cd9ebf1737a061487d5ada21abf31e99a98",
                 "with": {
                     "use-gha-cache": "${{ inputs.use-gha-cache }}",
                     "flakehub-flake-name": "${{ inputs.flakehub-flake-name }}",
diff --git a/flake.lock b/flake.lock
index 451e1e0..61ec565 100644
--- a/flake.lock
+++ b/flake.lock
@@ -2,12 +2,12 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1783224372,
-        "narHash": "sha256-8i/87eeoqiGE4yOTjwSA3Eh/ziJRQEmd/unYU+K27sk=",
-        "rev": "d407951447dcd00442e97087bf374aad70c04cea",
-        "revCount": 1027867,
+        "lastModified": 1784120854,
+        "narHash": "sha256-KesHgItiZPgGX740axSiQLcIQ8D24MDqNpkKYWIek8k=",
+        "rev": "753cc8a3a87467296ddd1fa93f0cc3e81120ee46",
+        "revCount": 1035164,
         "type": "tarball",
-        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.1027867%2Brev-d407951447dcd00442e97087bf374aad70c04cea/019f32d6-f801-7201-b6cb-59773d7eec95/source.tar.gz"
+        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.1035164%2Brev-753cc8a3a87467296ddd1fa93f0cc3e81120ee46/019f69c8-2fec-7903-bec1-68b3c985d626/source.tar.gz"
       },
       "original": {
         "type": "tarball",
diff --git a/tools/state.json b/tools/state.json
index 31a5f8e..cf4a14d 100644
--- a/tools/state.json
+++ b/tools/state.json
@@ -1,6 +1,6 @@
 {
-  "upstream_action_revision": "76aaf8814cdb385b86597c32b8c51b66b69b0839",
-  "self_version": "v3.21.5",
+  "upstream_action_revision": "55718cd9ebf1737a061487d5ada21abf31e99a98",
+  "self_version": "v3.21.7",
   "binary_revision": "03659f4394aec2317771e29041ef266669e2ee12",
   "checkout_action_tag": "v7.0.0"
 }