diff --git a/tools/locked_region_code_injection/Android.bp b/tools/locked_region_code_injection/Android.bp
index 98c0e69..3e12971 100644
--- a/tools/locked_region_code_injection/Android.bp
+++ b/tools/locked_region_code_injection/Android.bp
@@ -12,10 +12,10 @@
     manifest: "manifest.txt",
     srcs: ["src/**/*.java"],
     static_libs: [
-        "asm-6.0",
-        "asm-commons-6.0",
-        "asm-tree-6.0",
-        "asm-analysis-6.0",
+        "asm-7.0",
+        "asm-commons-7.0",
+        "asm-tree-7.0",
+        "asm-analysis-7.0",
         "guava-21.0",
     ],
 }
diff --git a/tools/locked_region_code_injection/src/lockedregioncodeinjection/LockTargetStateAnalysis.java b/tools/locked_region_code_injection/src/lockedregioncodeinjection/LockTargetStateAnalysis.java
index 1002c88..335b3f8 100644
--- a/tools/locked_region_code_injection/src/lockedregioncodeinjection/LockTargetStateAnalysis.java
+++ b/tools/locked_region_code_injection/src/lockedregioncodeinjection/LockTargetStateAnalysis.java
@@ -13,8 +13,6 @@
  */
 package lockedregioncodeinjection;
 
-import java.util.ArrayList;
-import java.util.List;
 import org.objectweb.asm.Type;
 import org.objectweb.asm.tree.AbstractInsnNode;
 import org.objectweb.asm.tree.MethodInsnNode;
@@ -22,6 +20,9 @@
 import org.objectweb.asm.tree.analysis.BasicInterpreter;
 import org.objectweb.asm.tree.analysis.BasicValue;
 
+import java.util.ArrayList;
+import java.util.List;
+
 /**
  * A simple dataflow analysis to determine if the operands on the stack must be one of target lock
  * class type.
@@ -31,6 +32,7 @@
     private final List<LockTarget> targetLocks;
 
     public LockTargetStateAnalysis(List<LockTarget> targetLocks) {
+        super(Utils.ASM_VERSION);
         this.targetLocks = targetLocks;
     }
 
diff --git a/tools/locked_region_code_injection/src/lockedregioncodeinjection/Utils.java b/tools/locked_region_code_injection/src/lockedregioncodeinjection/Utils.java
index 219c2b3..f1e84b1 100644
--- a/tools/locked_region_code_injection/src/lockedregioncodeinjection/Utils.java
+++ b/tools/locked_region_code_injection/src/lockedregioncodeinjection/Utils.java
@@ -13,13 +13,14 @@
  */
 package lockedregioncodeinjection;
 
+import org.objectweb.asm.Opcodes;
+
 import java.util.ArrayList;
 import java.util.List;
-import org.objectweb.asm.Opcodes;
 
 public class Utils {
 
-    public static final int ASM_VERSION = Opcodes.ASM6;
+    public static final int ASM_VERSION = Opcodes.ASM7;
 
     /**
      * Reads a comma separated configuration similar to the Jack definition.
diff --git a/tools/locked_region_code_injection/test/lockedregioncodeinjection/TestMain.java b/tools/locked_region_code_injection/test/lockedregioncodeinjection/TestMain.java
index c408b9e..31fa0bf 100644
--- a/tools/locked_region_code_injection/test/lockedregioncodeinjection/TestMain.java
+++ b/tools/locked_region_code_injection/test/lockedregioncodeinjection/TestMain.java
@@ -30,7 +30,7 @@
  * rm -fr out/*
  *
  * # Make booster
- * javac -cp lib/asm-6.0_BETA.jar:lib/asm-commons-6.0_BETA.jar:lib/asm-tree-6.0_BETA.jar:lib/asm-analysis-6.0_BETA.jar:lib/guava-21.0.jar src&#47;*&#47;*.java -d out/
+ * javac -cp lib/asm-7.0_BETA.jar:lib/asm-commons-7.0_BETA.jar:lib/asm-tree-7.0_BETA.jar:lib/asm-analysis-7.0_BETA.jar:lib/guava-21.0.jar src&#47;*&#47;*.java -d out/
  * pushd out
  * jar cfe lockedregioncodeinjection.jar lockedregioncodeinjection.Main *&#47;*.class
  * popd
@@ -43,7 +43,7 @@
  * popd
  *
  * # Run tool on unit tests.
- * java -ea -cp lib/asm-6.0_BETA.jar:lib/asm-commons-6.0_BETA.jar:lib/asm-tree-6.0_BETA.jar:lib/asm-analysis-6.0_BETA.jar:lib/guava-21.0.jar:out/lockedregioncodeinjection.jar \
+ * java -ea -cp lib/asm-7.0_BETA.jar:lib/asm-commons-7.0_BETA.jar:lib/asm-tree-7.0_BETA.jar:lib/asm-analysis-7.0_BETA.jar:lib/guava-21.0.jar:out/lockedregioncodeinjection.jar \
  *     lockedregioncodeinjection.Main \
  *     -i out/test_input.jar -o out/test_output.jar \
  *     --targets 'Llockedregioncodeinjection/TestTarget;' \