diff --git a/tests/compile/compile.sh b/tests/compile/compile.sh
deleted file mode 100755
index c916eba5a..000000000
--- a/tests/compile/compile.sh
+++ /dev/null
@@ -1,114 +0,0 @@
-#!/bin/bash
-#
-# Deprecation warning: (July 2020)
-# This advanced compilation test script has been deprecated in favour of
-#   npm run test:compile:advanced
-#
-# The script will be removed from Blockly core in Q4 of 2020.
-#
-echo "Deprecation warning: (July 2020)"
-echo "This advanced compilation test script has been deprecated in favour of"
-echo "  npm run test:compile:advanced"
-echo ""
-echo "The script will be removed from Blockly core in Q4 of 2020."
-echo ""
-
-echo "Executing compile.sh from $(pwd)"
-
-# Find the Blockly project root if pwd is the root
-# or if pwd is the directory containing this script.
-if [ -f ./main.js ] && [ -f ./compile.sh ]; then
-  BLOCKLY_ROOT="../.."
-elif [ -f tests/compile/compile.sh ]; then
-  BLOCKLY_ROOT="."
-else
-  echo "ERROR: Cannot determine BLOCKLY_ROOT" 1>&2;
-  exit 1
-fi
-
-# Test for npm and node_modules directory.
-if command -v npm >/dev/null 2>&1; then
-  NODE_MODULES=$(npm root)
-  # npm root will invent a location based on pwd if it can't find
-  # one, such as when the project has not been `npm install`ed.
-  # Clear the variable if the directory doesn't already exist.
-  [[ ! -d $NODE_MODULES ]] && NODE_MODULES=""
-fi
-
-# Find the Closure Compiler.
-if [ -n $NODE_MODULES ] && \
-  [ -s $NODE_MODULES/google-closure-compiler-java/compiler.jar ]; then
-  COMPILER=$NODE_MODULES/google-closure-compiler-java/compiler.jar
-  echo "Found npm google-closure-compiler:"
-  echo "  $COMPILER"
-  npm list google-closure-compiler | grep google-closure-compiler
-else
-  COMPILER_JARS=$(find $BLOCKLY_ROOT/tests/compile/ -maxdepth 1 -name "*compiler*.jar")
-  if [ -n "$COMPILER_JARS" ]; then
-    if [ $(echo "$COMPILER_JARS" | wc -l) -ne 1 ]; then
-      echo "ERROR: Found too many Closure *compiler*.jar files:" 1>&2;
-      echo "$COMPILER_JARS" 1>&2;
-      exit 1
-    fi
-    COMPILER=$COMPILER_JARS
-    echo "Found local Closure compiler .jar:"
-    echo "  $COMPILER"
-  else
-    echo "ERROR: Closure Compiler not found." 1>&2;
-    echo "Either npm install google-closure-compiler" 1>&2;
-    echo "Or download from this URL, and place jar file in current directory." 1>&2;
-    echo "https://dl.google.com/closure-compiler/compiler-latest.zip" 1>&2;
-    exit 1
-  fi
-fi
-
-if [ -f "$BLOCKLY_ROOT/tests/compile/main_compressed.js" ]; then
-  echo "Removing previous output."
-  rm "$BLOCKLY_ROOT/tests/compile/main_compressed.js"
-fi
-
-tempPath="$BLOCKLY_ROOT/temp_core"
-corePath="$BLOCKLY_ROOT/core/*"
-mkdir $tempPath
-cp $corePath $tempPath
-# Copy over all files in core and any subdirectories to the temp_core directory.
-for dir in "$corePath/" ; do
-  # For all files in the directory and any subdirectories rename them to
-  # include the subirectory name and copy them to temporary directory.
-  # Ex: subdir/file.js -> temp_core/subdir_file.js
-  for file in $(find $dir -name \*.js); do
-    # Replace all / with _ and remove core
-    newName="${file//\//_}"
-    newName="${newName//._core_/}"
-    newFilePath="$tempPath/$newName"
-    cp $file $newFilePath
-  done
-done
-
-echo "Compiling Blockly..."
-COMPILATION_COMMAND="java -jar $COMPILER --js='$BLOCKLY_ROOT/tests/compile/main.js' \
-  --js='$tempPath/**.js' \
-  --js='$BLOCKLY_ROOT/tests/blocks/**.js' \
-  --js='$BLOCKLY_ROOT/blocks/**.js' \
-  --js='$BLOCKLY_ROOT/generators/**.js' \
-  --generate_exports \
-  --externs $BLOCKLY_ROOT/externs/goog-externs.js \
-  --externs $BLOCKLY_ROOT/externs/svg-externs.js \
-  --compilation_level ADVANCED_OPTIMIZATIONS \
-  --language_in ECMASCRIPT5_STRICT \
-  --language_out ECMASCRIPT5_STRICT \
-  --dependency_mode=PRUNE --entry_point=Main \
-  --js_output_file $BLOCKLY_ROOT/tests/compile/main_compressed.js"
-echo "$COMPILATION_COMMAND"
-$COMPILATION_COMMAND
-EXIT_CODE=$?
-echo "Compiler exit code: $EXIT_CODE"
-if [ "$EXIT_CODE" -eq 0 ] && [ -s "$BLOCKLY_ROOT/tests/compile/main_compressed.js" ]; then
-  echo "Compilation SUCCESS."
-else
-  echo "Compilation FAIL."
-  exit 1
-fi
-
-# Cleanup temp_core directory
-rm -r $tempPath
diff --git a/tests/compile/index.html b/tests/compile/index.html
index 1ec1ce85a..8ffadca88 100644
--- a/tests/compile/index.html
+++ b/tests/compile/index.html
@@ -24,7 +24,7 @@
 
   <p>To run this test manually, download
   <a href="https://dl.google.com/closure-compiler/compiler-latest.zip">closure-compiler-vxxxxxxxx.jar</a>,
-  place it in this directory, then run compile.sh from the command line.</p>
+  place it in this directory, then run `npm run test:compile:advanced` from the command line.</p>
 
   <p>Measure the size of main_compressed.js (295kb as of October 2017), then reload
   this page and see if Blockly works.</p>
diff --git a/tests/run_all_tests.sh b/tests/run_all_tests.sh
index 2ab36c251..5107a6ebf 100755
--- a/tests/run_all_tests.sh
+++ b/tests/run_all_tests.sh
@@ -73,7 +73,7 @@ run_test_command "generators" "tests/scripts/run_generators.sh"
 run_test_command "node" "./node_modules/.bin/mocha tests/node --config tests/node/.mocharc.js"
 
 # # Attempt advanced compilation of a Blockly app.
-# run_test_command "advanced_compile" "tests/compile/compile.sh"
+# run_test_command "advanced_compile" "npm run test:compile:advanced"
 
 
 # End of tests.