diff --git a/.github/workflows/build-test.yml b/.github/workflows/build-test.yml
index a844e8bfd..01a96ad90 100644
--- a/.github/workflows/build-test.yml
+++ b/.github/workflows/build-test.yml
@@ -67,7 +67,7 @@ jobs:
         run: yarn test
 
   test-contracts:
-    name: Test storage layout and signatures
+    name: Test storage layout, signatures and look for unused errors
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
@@ -98,8 +98,11 @@ jobs:
       - name: Test function signatures
         run: yarn run test:signatures
 
-      - name: Test unused errors
-        run: yarn run test:unused:errors
+      - name: Run unused Solidity errors checker
+        uses: OffchainLabs/actions/check-unused-errors@unused-errors
+        with:
+          directory: './contracts'
+          exceptions_file: './test/unused-errors/exceptions.txt'
 
   test-e2e:
     name: Test e2e
diff --git a/test/unused-errors/find_unused_errors.sh b/test/unused-errors/find_unused_errors.sh
deleted file mode 100755
index 98b764975..000000000
--- a/test/unused-errors/find_unused_errors.sh
+++ /dev/null
@@ -1,68 +0,0 @@
-#!/bin/bash
-
-# Directory containing the Solidity files
-DIR="./contracts"
-EXCEPTIONS_FILE="./test/unused-errors/exceptions.txt"
-
-# Temporary file to store errors and their corresponding files
-ERRORS_FILE=$(mktemp)
-UNUSED_ERRORS_FILE=$(mktemp)
-exit_status=0
-
-# Load exceptions into an array
-exceptions=()
-if [ -f "$EXCEPTIONS_FILE" ]; then
-    while IFS= read -r line || [ -n "$line" ]; do
-        exceptions+=("$line")
-    done < "$EXCEPTIONS_FILE"
-fi
-
-# Function to check if an error is in the exceptions list
-is_exception() {
-    local error="$1"
-    for exception in "${exceptions[@]}"; do
-        if [ "$exception" == "$error" ]; then
-            return 0
-        fi
-    done
-    return 1
-}
-
-# Find all error definitions and store them in a temporary file along with filenames
-grep -rHo "error\s\+\w\+\s*(" $DIR | awk -F':' '{print $1 ": " $2}' | awk '{gsub(/error /, ""); gsub(/\(/, ""); print}' | sort -u > $ERRORS_FILE
-
-# Loop through each error to check if it is used
-while IFS=: read -r file error; do
-    # Normalize file and error output
-    error=$(echo $error | xargs)
-
-    # Skip errors in the exception list
-    if is_exception "$error"; then
-        echo "Skipping: $error"
-        continue
-    fi
-
-    # Count occurrences of each error in 'revert' statements
-    count=$(grep -roh "revert\s\+$error" $DIR | wc -l)
-
-    # If count is 0, the error is defined but never used
-    if [ "$count" -eq 0 ]; then
-        echo "$error" >> $UNUSED_ERRORS_FILE
-        exit_status=1
-    fi
-done < $ERRORS_FILE
-
-# Print the list of unused errors
-if [ -s $UNUSED_ERRORS_FILE ]; then
-    echo "These errors are defined, but never used:"
-    cat $UNUSED_ERRORS_FILE
-else
-    echo "All defined errors are used."
-fi
-
-# Remove the temporary files
-rm $ERRORS_FILE
-rm $UNUSED_ERRORS_FILE
-
-# Exit with the appropriate status
-exit $exit_status