diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 024b8968..f39ff827 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -11,7 +11,7 @@ on:
     inputs:
       toolchain:
         description: 'Default Rust Toolchain'
-        default: "1.73.0"
+        default: "1.78.0"
         required: true
         type: string
       target:
@@ -31,7 +31,7 @@ on:
         type: string
 
 env:
-  TOOLCHAIN: ${{ inputs.toolchain || '1.73.0' }}
+  TOOLCHAIN: ${{ inputs.toolchain || '1.78.0' }}
   TARGET: ${{ inputs.target || 'wasm32-unknown-unknown' }}
   REF: ${{ github.event_name == 'push' && github.ref || inputs.branch || 'main' }}
   ID: ${{ inputs.id || 'scheduled' }}