4 files changed, 17 insertions, 12 deletions
diff --git a/packages/instant/package.json b/packages/instant/package.json
index 1a6e9d2e9..be85b5062 100644
--- a/packages/instant/package.json
+++ b/packages/instant/package.json
@@ -58,12 +58,12 @@
         "react-redux": "^5.0.7",
         "redux": "^4.0.0",
         "redux-devtools-extension": "^2.13.5",
-        "styled-components": "^3.4.9",
+        "styled-components": "^4.0.2",
         "ts-optchain": "^0.1.1"
     },
     "devDependencies": {
-        "@static/discharge": "^1.2.2",
         "@0x/tslint-config": "^1.0.9",
+        "@static/discharge": "^1.2.2",
         "@types/enzyme": "^3.1.14",
         "@types/enzyme-adapter-react-16": "^1.0.3",
         "@types/jest": "^23.3.5",
@@ -73,6 +73,7 @@
         "@types/react-dom": "^16.0.8",
         "@types/react-redux": "^6.0.9",
         "@types/redux": "^3.6.0",
+        "@types/styled-components": "^4.0.1",
         "awesome-typescript-loader": "^5.2.1",
         "enzyme": "^3.6.0",
         "enzyme-adapter-react-16": "^1.5.0",
diff --git a/packages/instant/src/components/animations/slide_animations.tsx b/packages/instant/src/components/animations/slide_animations.tsx
index 1f10a2ed6..84280372b 100644
--- a/packages/instant/src/components/animations/slide_animations.tsx
+++ b/packages/instant/src/components/animations/slide_animations.tsx
@@ -1,6 +1,7 @@
 import * as React from 'react';
+import { Keyframes } from 'styled-components';
 
-import { keyframes, styled } from '../../style/theme';
+import { css, keyframes, styled } from '../../style/theme';
 
 const slideKeyframeGenerator = (fromY: string, toY: string) => keyframes`
     from {
@@ -15,7 +16,7 @@ const slideKeyframeGenerator = (fromY: string, toY: string) => keyframes`
 `;
 
 export interface SlideAnimationProps {
-    keyframes: string;
+    keyframes: Keyframes;
     animationType: string;
     animationDirection?: string;
 }
@@ -24,7 +25,10 @@ export const SlideAnimation =
     styled.div <
     SlideAnimationProps >
     `
-    animation-name: ${props => props.keyframes};
+    animation-name: ${props =>
+        css`
+            ${props.keyframes};
+        `};
     animation-duration: 0.3s;
     animation-timing-function: ${props => props.animationType};
     animation-delay: 0s;
diff --git a/packages/instant/src/style/fonts.ts b/packages/instant/src/style/fonts.ts
index 975a30a61..f305fd612 100644
--- a/packages/instant/src/style/fonts.ts
+++ b/packages/instant/src/style/fonts.ts
@@ -1,10 +1,10 @@
-import { injectGlobal } from './theme';
-
 export const fonts = {
     include: () => {
         // Inject the inter-ui font into the page
-        return injectGlobal`
-            @import url('https://rsms.me/inter/inter-ui.css');
-        `;
+        const head = document.head || document.getElementsByTagName('head')[0];
+        const style = document.createElement('style');
+        style.type = 'text/css';
+        style.appendChild(document.createTextNode(`@import url('https://rsms.me/inter/inter-ui.css')`));
+        head.appendChild(style);
     },
 };
diff --git a/packages/instant/src/style/theme.ts b/packages/instant/src/style/theme.ts
index d26c816c1..be527a12c 100644
--- a/packages/instant/src/style/theme.ts
+++ b/packages/instant/src/style/theme.ts
@@ -1,6 +1,6 @@
 import * as styledComponents from 'styled-components';
 
-const { default: styled, css, injectGlobal, keyframes, ThemeProvider } = styledComponents;
+const { default: styled, css, keyframes, ThemeProvider } = styledComponents;
 
 export type Theme = { [key in ColorOption]: string };
 
@@ -28,4 +28,4 @@ export const theme: Theme = {
     darkOrange: '#F2994C',
 };
 
-export { styled, css, injectGlobal, keyframes, ThemeProvider };
+export { styled, css, keyframes, ThemeProvider };