diff --git a/.github/workflows/builds.yml b/.github/workflows/builds.yml
index 508c4a1d2f..7e384b9210 100644
--- a/.github/workflows/builds.yml
+++ b/.github/workflows/builds.yml
@@ -58,7 +58,7 @@ jobs:
         with:
           submodules: recursive
 
-      - uses: dtolnay/rust-toolchain@1.73.0
+      - uses: dtolnay/rust-toolchain@1.81.0
 
       - name: Build command line args
         run: |
@@ -93,7 +93,7 @@ jobs:
         with:
           submodules: recursive
 
-      - uses: dtolnay/rust-toolchain@1.73.0
+      - uses: dtolnay/rust-toolchain@1.81.0
 
       - name: Build command line args
         run: |
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index e004f8a7fd..4180ac9359 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -32,7 +32,7 @@ jobs:
         with:
           compiler: ${{ matrix.compiler }}
           compiler-version: ${{ matrix.compiler-version }}
-      - uses: dtolnay/rust-toolchain@1.73.0
+      - uses: dtolnay/rust-toolchain@1.81.0
       - name: clean targets
         run: |
           make clean --silent >/dev/null
diff --git a/.github/workflows/coverage_report.yml b/.github/workflows/coverage_report.yml
index 8b54fff2d6..d1dd64455c 100644
--- a/.github/workflows/coverage_report.yml
+++ b/.github/workflows/coverage_report.yml
@@ -21,7 +21,7 @@ jobs:
 
       - uses: ./.github/actions/deps
       - uses: ./.github/actions/hugepages
-      - uses: dtolnay/rust-toolchain@1.73.0
+      - uses: dtolnay/rust-toolchain@1.81.0
 
       - name: Generate all coverage
         run: |
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 55d2a0f05e..3801980ce1 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -106,7 +106,7 @@ jobs:
           compiler: ${{ matrix.compiler }}
           compiler-version: ${{ matrix.compiler-version }}
       - uses: ./.github/actions/hugepages
-      - uses: dtolnay/rust-toolchain@1.73.0
+      - uses: dtolnay/rust-toolchain@1.81.0
 
       - name: clean targets
         run: |