diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c9ded4f3f..b11a5d33a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -267,7 +267,7 @@ jobs:
         uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
 
       - name: Install rust 1.93.1
-        uses: dtolnay/rust-toolchain@1.93.1
+        uses: dtolnay/rust-toolchain@1.100.0
 
       - name: Cache cargo target
         uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6  # v2
@@ -353,7 +353,7 @@ jobs:
         uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
 
       - name: Install rust 1.93.1
-        uses: dtolnay/rust-toolchain@1.93.1
+        uses: dtolnay/rust-toolchain@1.100.0
 
       - name: Cache cargo target
         uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6  # v2
@@ -400,7 +400,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Install rust 1.93.1
-        uses: dtolnay/rust-toolchain@1.93.1
+        uses: dtolnay/rust-toolchain@1.100.0
 
       - name: Clone lagging_server
         uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
@@ -430,7 +430,7 @@ jobs:
         run: sudo apt-get update && sudo apt-get install -y protobuf-compiler
 
       - name: Install rust 1.93.1
-        uses: dtolnay/rust-toolchain@1.93.1
+        uses: dtolnay/rust-toolchain@1.100.0
 
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
 
@@ -467,7 +467,7 @@ jobs:
         run: sudo apt-get update && sudo apt-get install -y protobuf-compiler cmake
 
       - name: Install rust 1.93.1
-        uses: dtolnay/rust-toolchain@1.93.1
+        uses: dtolnay/rust-toolchain@1.100.0
 
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
 
@@ -558,7 +558,7 @@ jobs:
         run: sudo apt-get update && sudo apt-get install -y protobuf-compiler
 
       - name: Install rust 1.93.1
-        uses: dtolnay/rust-toolchain@1.93.1
+        uses: dtolnay/rust-toolchain@1.100.0
 
       # Reuse the crypto-ring pipeline cache for the release sozu
       # build that the logger bench drives.
@@ -604,7 +604,7 @@ jobs:
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
       - uses: docker/setup-qemu-action@96fe6ef7f33517b61c61be40b68a1882f3264fb8  # v4
-      - uses: docker/setup-buildx-action@bb05f3f5519dd87d3ba754cc423b652a5edd6d2c  # v4
+      - uses: docker/setup-buildx-action@37fe631027851001ddb9b187196cc803df7f5f0e  # v4
       - uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f  # v4
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index c4a62420b..2653b5648 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -166,7 +166,7 @@ jobs:
 
       - name: Install rust 1.93.1
         # Release builds must match the MSRV pinned in `rust-toolchain`.
-        uses: dtolnay/rust-toolchain@1.93.1
+        uses: dtolnay/rust-toolchain@1.100.0
         with:
           targets: ${{ matrix.target }}
 
@@ -410,7 +410,7 @@ jobs:
         with:
           ref: ${{ needs.preflight.outputs.tag }}
       - uses: docker/setup-qemu-action@96fe6ef7f33517b61c61be40b68a1882f3264fb8  # v4
-      - uses: docker/setup-buildx-action@bb05f3f5519dd87d3ba754cc423b652a5edd6d2c  # v4
+      - uses: docker/setup-buildx-action@37fe631027851001ddb9b187196cc803df7f5f0e  # v4
       - uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f  # v4
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
diff --git a/.github/workflows/simulation-sweep.yml b/.github/workflows/simulation-sweep.yml
index 95f398588..5ca225726 100644
--- a/.github/workflows/simulation-sweep.yml
+++ b/.github/workflows/simulation-sweep.yml
@@ -87,7 +87,7 @@ jobs:
         uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
 
       - name: Install rust 1.93.1
-        uses: dtolnay/rust-toolchain@1.93.1
+        uses: dtolnay/rust-toolchain@1.100.0
 
       - name: Cache cargo target
         uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6  # v2
@@ -129,7 +129,7 @@ jobs:
         uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
 
       - name: Install rust 1.93.1
-        uses: dtolnay/rust-toolchain@1.93.1
+        uses: dtolnay/rust-toolchain@1.100.0
 
       - name: Cache cargo target
         uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6  # v2