diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f232813..b2cdb45 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,7 +13,7 @@ env:
     --remap-path-prefix /home/runner/work=src
     --remap-path-prefix /home/runner/.cargo/registry/src=crate
     --remap-path-prefix /home/runner/.rustup=rustup
-  RUST_TOOLCHAIN: "1.88"
+  RUST_TOOLCHAIN: "1.93"
   SOURCE_DATE_EPOCH: "0"
   CARGO_INCREMENTAL: "0"
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 118469a..221cc9a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -11,7 +11,7 @@ env:
     --remap-path-prefix /home/runner/work=src
     --remap-path-prefix /home/runner/.cargo/registry/src=crate
     --remap-path-prefix /home/runner/.rustup=rustup
-  RUST_TOOLCHAIN: "1.88"
+  RUST_TOOLCHAIN: "1.93"
   SOURCE_DATE_EPOCH: "0"
   CARGO_INCREMENTAL: "0"
 
diff --git a/.github/workflows/supply-chain-test.yml b/.github/workflows/supply-chain-test.yml
index 0869696..69f3370 100644
--- a/.github/workflows/supply-chain-test.yml
+++ b/.github/workflows/supply-chain-test.yml
@@ -13,7 +13,7 @@ env:
     --remap-path-prefix /home/runner/work=src
     --remap-path-prefix /home/runner/.cargo/registry/src=crate
     --remap-path-prefix /home/runner/.rustup=rustup
-  RUST_TOOLCHAIN: "1.88"
+  RUST_TOOLCHAIN: "1.93"
   SOURCE_DATE_EPOCH: "0"
   CARGO_INCREMENTAL: "0"