diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/fileutil.py b/utils/ipc/mojo/public/tools/mojom/mojom/fileutil.py
index bf626f54..e1c823da 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/fileutil.py
+++ b/utils/ipc/mojo/public/tools/mojom/mojom/fileutil.py
@@ -3,7 +3,6 @@
 # found in the LICENSE file.
 
 import errno
-import imp
 import os.path
 import sys
 
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/fileutil_unittest.py b/utils/ipc/mojo/public/tools/mojom/mojom/fileutil_unittest.py
index ff5753a2..e754151f 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/fileutil_unittest.py
+++ b/utils/ipc/mojo/public/tools/mojom/mojom/fileutil_unittest.py
@@ -2,7 +2,6 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-import imp
 import os.path
 import shutil
 import sys
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/generate/generator_unittest.py b/utils/ipc/mojo/public/tools/mojom/mojom/generate/generator_unittest.py
index 32c884a8..6cae6092 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/generate/generator_unittest.py
+++ b/utils/ipc/mojo/public/tools/mojom/mojom/generate/generator_unittest.py
@@ -2,7 +2,7 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-import imp
+import importlib.util
 import os.path
 import sys
 import unittest
@@ -18,10 +18,7 @@ def _GetDirAbove(dirname):
     if tail == dirname:
       return path
 
-
-try:
-  imp.find_module("mojom")
-except ImportError:
+if importlib.util.find_spec("mojom") is None:
   sys.path.append(os.path.join(_GetDirAbove("pylib"), "pylib"))
 from mojom.generate import generator
 
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/generate/translate_unittest.py b/utils/ipc/mojo/public/tools/mojom/mojom/generate/translate_unittest.py
index 19905c8a..09724d88 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/generate/translate_unittest.py
+++ b/utils/ipc/mojo/public/tools/mojom/mojom/generate/translate_unittest.py
@@ -2,7 +2,6 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-import imp
 import os.path
 import sys
 import unittest
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/parse/ast_unittest.py b/utils/ipc/mojo/public/tools/mojom/mojom/parse/ast_unittest.py
index 62798631..4ab51033 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/parse/ast_unittest.py
+++ b/utils/ipc/mojo/public/tools/mojom/mojom/parse/ast_unittest.py
@@ -2,7 +2,6 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-import imp
 import os.path
 import sys
 import unittest
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/parse/conditional_features_unittest.py b/utils/ipc/mojo/public/tools/mojom/mojom/parse/conditional_features_unittest.py
index aa609be7..f3c2c95f 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/parse/conditional_features_unittest.py
+++ b/utils/ipc/mojo/public/tools/mojom/mojom/parse/conditional_features_unittest.py
@@ -2,7 +2,7 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-import imp
+import importlib.util
 import os
 import sys
 import unittest
@@ -18,10 +18,7 @@ def _GetDirAbove(dirname):
     if tail == dirname:
       return path
 
-
-try:
-  imp.find_module('mojom')
-except ImportError:
+if importlib.util.find_spec("mojom") is None:
   sys.path.append(os.path.join(_GetDirAbove('pylib'), 'pylib'))
 import mojom.parse.ast as ast
 import mojom.parse.conditional_features as conditional_features
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/parse/lexer.py b/utils/ipc/mojo/public/tools/mojom/mojom/parse/lexer.py
index 3e084bbf..1e8b49f2 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/parse/lexer.py
+++ b/utils/ipc/mojo/public/tools/mojom/mojom/parse/lexer.py
@@ -2,7 +2,6 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-import imp
 import os.path
 import sys
 
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/parse/lexer_unittest.py b/utils/ipc/mojo/public/tools/mojom/mojom/parse/lexer_unittest.py
index eadc6587..77976507 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/parse/lexer_unittest.py
+++ b/utils/ipc/mojo/public/tools/mojom/mojom/parse/lexer_unittest.py
@@ -2,7 +2,7 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-import imp
+import importlib.util
 import os.path
 import sys
 import unittest
@@ -22,9 +22,7 @@ def _GetDirAbove(dirname):
 sys.path.insert(1, os.path.join(_GetDirAbove("mojo"), "third_party"))
 from ply import lex
 
-try:
-  imp.find_module("mojom")
-except ImportError:
+if importlib.util.find_spec("mojom") is None:
   sys.path.append(os.path.join(_GetDirAbove("pylib"), "pylib"))
 import mojom.parse.lexer
 
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/parse/parser_unittest.py b/utils/ipc/mojo/public/tools/mojom/mojom/parse/parser_unittest.py
index 6d6b7153..7e8acf43 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/parse/parser_unittest.py
+++ b/utils/ipc/mojo/public/tools/mojom/mojom/parse/parser_unittest.py
@@ -2,7 +2,6 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-import imp
 import os.path
 import sys
 import unittest