diff --git a/core/profiles/demo_umami/themes/umami/css/base.css b/core/profiles/demo_umami/themes/umami/css/base.css
index c061c08312..d30a770469 100644
--- a/core/profiles/demo_umami/themes/umami/css/base.css
+++ b/core/profiles/demo_umami/themes/umami/css/base.css
@@ -281,6 +281,14 @@ optgroup {
   line-height: normal;
 }
 
+/**
+ * Prevent regression due to -webkit-appearance being set to button in
+ * normalize.css 4.1.0.
+ */
+::-webkit-file-upload-button {
+  -webkit-appearance: push-button;
+}
+
 ul,
 ol {
   margin-bottom: 1.28rem;
diff --git a/core/themes/bartik/css/components/form.css b/core/themes/bartik/css/components/form.css
index 7eaec6dd13..42a132138b 100644
--- a/core/themes/bartik/css/components/form.css
+++ b/core/themes/bartik/css/components/form.css
@@ -100,6 +100,14 @@ input, button{
   line-height: 1.21875rem;
 }
 
+/**
+ * Prevent regression due to -webkit-appearance being set to button in
+ * normalize.css 4.1.0.
+ */
+::-webkit-file-upload-button {
+  -webkit-appearance: push-button;
+}
+
 /**
  * Make the font slightly bigger in mobile
  * @todo: check the correct font-size
diff --git a/core/themes/claro/css/components/form.css b/core/themes/claro/css/components/form.css
index 66e38150c9..50636aba31 100644
--- a/core/themes/claro/css/components/form.css
+++ b/core/themes/claro/css/components/form.css
@@ -282,7 +282,7 @@ tr .form-item,
 }
 
 /**
- * Prevent regression due to explicit line-height applied to these elements in
+ * Prevent regression due to explicit line-heights applied to these elements in
  * normalize.css 7.0.0.
  */
 
@@ -293,3 +293,12 @@ button {
 input, optgroup {
   line-height: 1.5rem;
 }
+
+/**
+ * Prevent regression due to -webkit-appearance being set to button in
+ * normalize.css 4.1.0.
+ */
+
+::-webkit-file-upload-button {
+  -webkit-appearance: push-button;
+}
diff --git a/core/themes/claro/css/components/form.pcss.css b/core/themes/claro/css/components/form.pcss.css
index 967cc646f9..853cf9113c 100644
--- a/core/themes/claro/css/components/form.pcss.css
+++ b/core/themes/claro/css/components/form.pcss.css
@@ -200,7 +200,7 @@ tr .form-item,
 }
 
 /**
- * Prevent regression due to explicit line-height applied to these elements in
+ * Prevent regression due to explicit line-heights applied to these elements in
  * normalize.css 7.0.0.
  */
 button {
@@ -209,3 +209,11 @@ button {
 input, optgroup {
   line-height: 1.5rem;
 }
+
+/**
+ * Prevent regression due to -webkit-appearance being set to button in
+ * normalize.css 4.1.0.
+ */
+::-webkit-file-upload-button {
+  -webkit-appearance: push-button;
+}
diff --git a/core/themes/seven/css/components/form.css b/core/themes/seven/css/components/form.css
index 2c269e72bb..0e283dee4b 100644
--- a/core/themes/seven/css/components/form.css
+++ b/core/themes/seven/css/components/form.css
@@ -378,3 +378,11 @@ textarea {
 select {
   font-size: 0.8125rem;
 }
+
+/**
+ * Prevent regression due to -webkit-appearance being set to button in
+ * normalize.css 4.1.0.
+ */
+::-webkit-file-upload-button {
+  -webkit-appearance: push-button;
+}