diff --git a/web/src/components/CaseBuilder/ProfiledUnits.tsx b/web/src/components/CaseBuilder/ProfiledUnits.tsx
index d4aeb51..35b6e29 100644
--- a/web/src/components/CaseBuilder/ProfiledUnits.tsx
+++ b/web/src/components/CaseBuilder/ProfiledUnits.tsx
@@ -174,7 +174,7 @@ const ProfiledUnitsComponent = (props: CaseBuilderSectionProps) => {
 
   return (
     <div>
-      <SectionHeader title="Profiled Units">
+      <SectionHeader title="Profiled units">
         <SectionButton icon={faPlus} tooltip="Add" onClick={onAdd} />
         <SectionButton
           icon={faDownload}
diff --git a/web/src/components/CaseBuilder/ThermalUnits.tsx b/web/src/components/CaseBuilder/ThermalUnits.tsx
index 9a26cc8..b2e18b1 100644
--- a/web/src/components/CaseBuilder/ThermalUnits.tsx
+++ b/web/src/components/CaseBuilder/ThermalUnits.tsx
@@ -228,7 +228,7 @@ const ThermalUnitsComponent = (props: CaseBuilderSectionProps) => {
 
   return (
     <div>
-      <SectionHeader title="Thermal Units">
+      <SectionHeader title="Thermal units">
         <SectionButton icon={faPlus} tooltip="Add" onClick={onAdd} />
         <SectionButton
           icon={faDownload}
diff --git a/web/src/components/CaseBuilder/TransmissionLines.tsx b/web/src/components/CaseBuilder/TransmissionLines.tsx
index aeab1c9..c95e1f9 100644
--- a/web/src/components/CaseBuilder/TransmissionLines.tsx
+++ b/web/src/components/CaseBuilder/TransmissionLines.tsx
@@ -163,7 +163,7 @@ const TransmissionLinesComponent = (props: CaseBuilderSectionProps) => {
 
   return (
     <div>
-      <SectionHeader title="Transmission Lines">
+      <SectionHeader title="Transmission lines">
         <SectionButton icon={faPlus} tooltip="Add" onClick={onAdd} />
         <SectionButton
           icon={faDownload}