diff --git a/.github/workflows/Build.yml b/.github/workflows/Build.yml
index 2371e031..9e7b8443 100644
--- a/.github/workflows/Build.yml
+++ b/.github/workflows/Build.yml
@@ -105,7 +105,7 @@ jobs:
           sudo ldconfig
 
       - name: Setup Rust (nightly, latest)
-        uses: dtolnay/rust-toolchain@02cb101ec7c40f2c49e1d9714d64511d8e1b74de # v1
+        uses: dtolnay/rust-toolchain@7e38f4b43b4db5c8dd498af069a4f6196df1d067 # v1
         with:
           toolchain: nightly
           targets: ${{ matrix.target }}
diff --git a/.github/workflows/Check.yml b/.github/workflows/Check.yml
index 13b4870b..5593030f 100644
--- a/.github/workflows/Check.yml
+++ b/.github/workflows/Check.yml
@@ -65,7 +65,7 @@ jobs:
         # nightly. `toolchain: nightly` resolves to whatever the latest
         # nightly is on the day the workflow runs - deliberately never a
         # dated pin.
-        uses: dtolnay/rust-toolchain@02cb101ec7c40f2c49e1d9714d64511d8e1b74de # v1
+        uses: dtolnay/rust-toolchain@7e38f4b43b4db5c8dd498af069a4f6196df1d067 # v1
         with:
           toolchain: nightly
           components: rustfmt, clippy
@@ -102,7 +102,7 @@ jobs:
         # codebase (1235 diff hunks, verified locally) - a false-positive
         # gate, not a real regression. A pinned dated nightly is carried
         # solely for this one step; every other job uses stable.
-        uses: dtolnay/rust-toolchain@02cb101ec7c40f2c49e1d9714d64511d8e1b74de # v1
+        uses: dtolnay/rust-toolchain@7e38f4b43b4db5c8dd498af069a4f6196df1d067 # v1
         with:
           toolchain: nightly-2026-05-01
           components: rustfmt
diff --git a/.github/workflows/Publish.yml b/.github/workflows/Publish.yml
index 101ad79c..b8540179 100644
--- a/.github/workflows/Publish.yml
+++ b/.github/workflows/Publish.yml
@@ -75,7 +75,7 @@ jobs:
           ref: ${{ github.event.workflow_run.head_branch }}
 
       - name: Setup Rust (nightly, latest)
-        uses: dtolnay/rust-toolchain@02cb101ec7c40f2c49e1d9714d64511d8e1b74de # v1
+        uses: dtolnay/rust-toolchain@7e38f4b43b4db5c8dd498af069a4f6196df1d067 # v1
         with:
           toolchain: nightly
 
@@ -130,7 +130,7 @@ jobs:
           ref: ${{ github.event.workflow_run.head_branch }}
 
       - name: Setup Rust (nightly, latest)
-        uses: dtolnay/rust-toolchain@02cb101ec7c40f2c49e1d9714d64511d8e1b74de # v1
+        uses: dtolnay/rust-toolchain@7e38f4b43b4db5c8dd498af069a4f6196df1d067 # v1
         with:
           toolchain: nightly
 
@@ -189,7 +189,7 @@ jobs:
           ref: ${{ github.event.workflow_run.head_branch }}
 
       - name: Setup Rust (nightly, latest)
-        uses: dtolnay/rust-toolchain@02cb101ec7c40f2c49e1d9714d64511d8e1b74de # v1
+        uses: dtolnay/rust-toolchain@7e38f4b43b4db5c8dd498af069a4f6196df1d067 # v1
         with:
           toolchain: nightly
 
@@ -230,7 +230,7 @@ jobs:
           ref: ${{ github.event.workflow_run.head_branch }}
 
       - name: Setup Rust (nightly, latest)
-        uses: dtolnay/rust-toolchain@02cb101ec7c40f2c49e1d9714d64511d8e1b74de # v1
+        uses: dtolnay/rust-toolchain@7e38f4b43b4db5c8dd498af069a4f6196df1d067 # v1
         with:
           toolchain: nightly