diff --git a/.forgejo/actions/prepare-rust/action.yaml b/.forgejo/actions/prepare-rust/action.yaml
index f64e112..39031d0 100644
--- a/.forgejo/actions/prepare-rust/action.yaml
+++ b/.forgejo/actions/prepare-rust/action.yaml
@@ -3,9 +3,9 @@ description: Prepare an environment to build or test rust packages
 
 inputs:
   targets:
-    description: "Array of targets to add to rustup"
+    description: "JSON Array of targets to add to rustup"
     required: false
-    default: []
+    default: '[]'
 
 runs:
   using: "composite"
@@ -27,14 +27,14 @@ runs:
           ~/.cargo/git/db
           ~/.rustup
           target/
-        key: rust-${{ join(inputs.targets, '-') }}-${{ hashFiles('Cargo.toml') }}-${{ hashFiles('Cargo.lock')}}
+        key: rust-${{ join(fromJSON(inputs.targets), '-') }}-${{ hashFiles('Cargo.toml') }}-${{ hashFiles('Cargo.lock')}}
     -
       name: Install rustup and rust
       if: steps.cache.outputs.cache-hit != 'true'
       uses: https://github.com/dtolnay/rust-toolchain@1.75.0
       with:
         components: clippy
-        targets: ${{ join(inputs.targets, ',') }}
+        targets: ${{ join(fromJSON(inputs.targets), ',') }}
     -
       name: Install cargo-zigbuild
       if: steps.cache.outputs.cache-hit != 'true'
diff --git a/.forgejo/workflows/check.yaml b/.forgejo/workflows/check.yaml
index 4366b0f..427e268 100644
--- a/.forgejo/workflows/check.yaml
+++ b/.forgejo/workflows/check.yaml
@@ -55,10 +55,10 @@ jobs:
         name: Setup Rust
         uses: https://git.asonix.dog/asonix/pict-rs/.forgejo/actions/prepare-rust@main
         with:
-          targets:
-            - x86_64-unknown-linux-musl
-            - armv7-unknown-linux-musleabihf
-            - aarch64-unknown-linux-musl
+          targets: |
+             ["x86_64-unknown-linux-musl",
+             "armv7-unknown-linux-musleabihf",
+             "aarch64-unknown-linux-musl"]
       -
         name: Debug builds
         run: cargo zigbuild --target ${{ matrix.target }}