diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 5876414..3b0b985 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -20,7 +20,7 @@ jobs:
       uses: actions-rs/toolchain@v1
       with:
         profile: minimal
-        toolchain: nightly
+        toolchain: nightly-2023-03-21
         override: true
     - name: Add targets
       run: rustup target add x86_64-unknown-linux-gnu && rustup target add i686-unknown-linux-gnu
@@ -50,7 +50,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: Install nightly toolchain
-      run: rustup toolchain install nightly
+      run: rustup toolchain install nightly-2023-03-21
     - name: Add targets
       run: rustup target add x86_64-pc-windows-msvc && rustup target add i686-pc-windows-msvc
     - name: Build 64-bit
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 271800c..3cdcac1 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,2 +1,2 @@
 [toolchain]
-channel = "nightly"
\ No newline at end of file
+channel = "nightly-2023-03-21"
\ No newline at end of file