diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 0ce3977e..34b74610 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -89,7 +89,15 @@ jobs:
         if: matrix.build == 'macos'
         run: cargo build --release
 
+      - name: Install Perl (Windows)
+        uses: shogo82148/actions-setup-perl@v1
+        with:
+          perl-version: "5.30"
+          distribution: strawberry
+        if: env.IS_MD_FILE == 'false' && runner.os == 'Windows'
+
       - name: Build (Windows)
+        shell: cmd # Use cmd as the default shell to avoid perl path errors
         if: matrix.build == 'windows'
         run: cargo build --release
         env:
diff --git a/.github/workflows/test-pr.yml b/.github/workflows/test-pr.yml
index 4f856a07..b620d7f1 100644
--- a/.github/workflows/test-pr.yml
+++ b/.github/workflows/test-pr.yml
@@ -2,7 +2,7 @@ name: Test (PR)
 
 on: [pull_request]
 env:
-  BUILD: "false"
+  BUILD: false
 jobs:
   test:
     name: Test
@@ -69,7 +69,21 @@ jobs:
         if: env.BUILD == 'true'
 
       - name: Run Tests
-        run: cargo test --verbose -- --test-threads=1
+        run: cargo test --verbose
         env:
           RUST_BACKTRACE: 1
-        if: env.BUILD == 'true'
+        if: env.IS_MD_FILE == 'false' && runner.os != 'Windows'
+
+      - name: Install Perl (Windows)
+        uses: shogo82148/actions-setup-perl@v1
+        with:
+          perl-version: "5.30"
+          distribution: strawberry
+        if: env.IS_MD_FILE == 'false' && runner.os == 'Windows'
+
+      - name: Run Tests (Windows)
+        run: cargo test --verbose
+        env:
+          RUST_BACKTRACE: 1
+        shell: cmd
+        if: env.IS_MD_FILE == 'false' && runner.os == 'Windows'
diff --git a/ci/buildvars.sh b/ci/buildvars.sh
index fb449bce..c5e5b6d2 100755
--- a/ci/buildvars.sh
+++ b/ci/buildvars.sh
@@ -2,6 +2,7 @@
 # If source files were indeed modified, then this script sets `BUILD=true`
 
 set -euo pipefail
+
 SRC_CHANGED_COUNT=$(git diff --numstat HEAD^..HEAD -- '*.rs' '*.yml' '*.toml' 'Dockerfile' | wc -l)
 
 if [ $SRC_CHANGED_COUNT != "0" ]; then