diff --git a/src/components/Lists/Proxiwash/ProxiwashListItem.tsx b/src/components/Lists/Proxiwash/ProxiwashListItem.tsx
index 2317805..9882333 100644
--- a/src/components/Lists/Proxiwash/ProxiwashListItem.tsx
+++ b/src/components/Lists/Proxiwash/ProxiwashListItem.tsx
@@ -71,7 +71,7 @@ const styles = StyleSheet.create({
  * Component used to display a proxiwash item, showing machine progression and state
  */
 class ProxiwashListItem extends React.Component<PropsType> {
-  static stateStrings: {[key in MachineStates]: string} = {
+  stateStrings: {[key in MachineStates]: string} = {
     [MachineStates.AVAILABLE]: i18n.t('screens.proxiwash.states.ready'),
     [MachineStates.RUNNING]: i18n.t('screens.proxiwash.states.running'),
     [MachineStates.RUNNING_NOT_STARTED]: i18n.t(
@@ -146,7 +146,7 @@ class ProxiwashListItem extends React.Component<PropsType> {
       ? `${props.item.startTime}/${props.item.endTime}`
       : '';
     const stateIcon = ProxiwashConstants.stateIcons[machineState];
-    const stateString = ProxiwashListItem.stateStrings[machineState];
+    const stateString = this.stateStrings[machineState];
     let progress;
     if (isRunning && props.item.donePercent !== '') {
       progress = parseFloat(props.item.donePercent) / 100;
diff --git a/src/screens/About/AboutScreen.tsx b/src/screens/About/AboutScreen.tsx
index 22437df..6549ae5 100644
--- a/src/screens/About/AboutScreen.tsx
+++ b/src/screens/About/AboutScreen.tsx
@@ -84,7 +84,7 @@ class AboutScreen extends React.Component<PropsType, StateType> {
   /**
    * Object containing data relative to major contributors
    */
-  static majorContributors: {[key: string]: MemberItemType} = {
+  majorContributors: {[key: string]: MemberItemType} = {
     arnaud: {
       name: 'Arnaud Vergnet',
       message: i18n.t('screens.about.user.arnaud'),
@@ -115,7 +115,7 @@ class AboutScreen extends React.Component<PropsType, StateType> {
   /**
    * Object containing data relative to users who helped during development
    */
-  static helpfulUsers: {[key: string]: MemberItemType} = {
+  helpfulUsers: {[key: string]: MemberItemType} = {
     beranger: {
       name: 'Béranger Quintana Y Arciosana',
       message: i18n.t('screens.about.user.beranger'),
@@ -199,18 +199,18 @@ class AboutScreen extends React.Component<PropsType, StateType> {
   teamData: Array<ListItemType> = [
     {
       onPressCallback: () => {
-        this.onContributorListItemPress(AboutScreen.majorContributors.arnaud);
+        this.onContributorListItemPress(this.majorContributors.arnaud);
       },
-      icon: AboutScreen.majorContributors.arnaud.icon,
-      text: AboutScreen.majorContributors.arnaud.name,
+      icon: this.majorContributors.arnaud.icon,
+      text: this.majorContributors.arnaud.name,
       showChevron: false,
     },
     {
       onPressCallback: () => {
-        this.onContributorListItemPress(AboutScreen.majorContributors.yohan);
+        this.onContributorListItemPress(this.majorContributors.yohan);
       },
-      icon: AboutScreen.majorContributors.yohan.icon,
-      text: AboutScreen.majorContributors.yohan.name,
+      icon: this.majorContributors.yohan.icon,
+      text: this.majorContributors.yohan.name,
       showChevron: false,
     },
     {
@@ -230,42 +230,42 @@ class AboutScreen extends React.Component<PropsType, StateType> {
   thanksData: Array<ListItemType> = [
     {
       onPressCallback: () => {
-        this.onContributorListItemPress(AboutScreen.helpfulUsers.beranger);
+        this.onContributorListItemPress(this.helpfulUsers.beranger);
       },
-      icon: AboutScreen.helpfulUsers.beranger.icon,
-      text: AboutScreen.helpfulUsers.beranger.name,
+      icon: this.helpfulUsers.beranger.icon,
+      text: this.helpfulUsers.beranger.name,
       showChevron: false,
     },
     {
       onPressCallback: () => {
-        this.onContributorListItemPress(AboutScreen.helpfulUsers.celine);
+        this.onContributorListItemPress(this.helpfulUsers.celine);
       },
-      icon: AboutScreen.helpfulUsers.celine.icon,
-      text: AboutScreen.helpfulUsers.celine.name,
+      icon: this.helpfulUsers.celine.icon,
+      text: this.helpfulUsers.celine.name,
       showChevron: false,
     },
     {
       onPressCallback: () => {
-        this.onContributorListItemPress(AboutScreen.helpfulUsers.damien);
+        this.onContributorListItemPress(this.helpfulUsers.damien);
       },
-      icon: AboutScreen.helpfulUsers.damien.icon,
-      text: AboutScreen.helpfulUsers.damien.name,
+      icon: this.helpfulUsers.damien.icon,
+      text: this.helpfulUsers.damien.name,
       showChevron: false,
     },
     {
       onPressCallback: () => {
-        this.onContributorListItemPress(AboutScreen.helpfulUsers.titouan);
+        this.onContributorListItemPress(this.helpfulUsers.titouan);
       },
-      icon: AboutScreen.helpfulUsers.titouan.icon,
-      text: AboutScreen.helpfulUsers.titouan.name,
+      icon: this.helpfulUsers.titouan.icon,
+      text: this.helpfulUsers.titouan.name,
       showChevron: false,
     },
     {
       onPressCallback: () => {
-        this.onContributorListItemPress(AboutScreen.helpfulUsers.theo);
+        this.onContributorListItemPress(this.helpfulUsers.theo);
       },
-      icon: AboutScreen.helpfulUsers.theo.icon,
-      text: AboutScreen.helpfulUsers.theo.name,
+      icon: this.helpfulUsers.theo.icon,
+      text: this.helpfulUsers.theo.name,
       showChevron: false,
     },
   ];
diff --git a/src/screens/Proxiwash/ProxiwashScreen.tsx b/src/screens/Proxiwash/ProxiwashScreen.tsx
index fd35027..38a5f70 100644
--- a/src/screens/Proxiwash/ProxiwashScreen.tsx
+++ b/src/screens/Proxiwash/ProxiwashScreen.tsx
@@ -86,7 +86,7 @@ class ProxiwashScreen extends React.Component<PropsType, StateType> {
     );
   }
 
-  static modalStateStrings: {[key in MachineStates]: string} = {
+  modalStateStrings: {[key in MachineStates]: string} = {
     [MachineStates.AVAILABLE]: i18n.t('screens.proxiwash.modal.ready'),
     [MachineStates.RUNNING]: i18n.t('screens.proxiwash.modal.running'),
     [MachineStates.RUNNING_NOT_STARTED]: i18n.t(
@@ -205,7 +205,7 @@ class ProxiwashScreen extends React.Component<PropsType, StateType> {
       icon: '',
       onPress: () => undefined,
     };
-    let message = ProxiwashScreen.modalStateStrings[item.state];
+    let message = this.modalStateStrings[item.state];
     const onPress = () => this.onSetupNotificationsPress(item);
     if (item.state === MachineStates.RUNNING) {
       let remainingTime = parseInt(item.remainingTime, 10);