diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index bfee7b92a5a0c6..019b59fc645390 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Dependencies>
   <ProductDependencies>
-    <Dependency Name="Microsoft.NETCore.Runtime.ICU.Transport" Version="9.0.0-rtm.26261.1">
+    <Dependency Name="Microsoft.NETCore.Runtime.ICU.Transport" Version="9.0.0-rtm.26278.1">
       <Uri>https://github.com/dotnet/icu</Uri>
-      <Sha>67d0db7e61ed6ba212622a174bed04ef47aa2118</Sha>
+      <Sha>1ef686babc127f17a7e5614829b9a9b5431dd732</Sha>
     </Dependency>
     <Dependency Name="System.Net.MsQuic.Transport" Version="9.0.0-alpha.1.24167.3">
       <Uri>https://github.com/dotnet/msquic</Uri>
diff --git a/eng/Versions.props b/eng/Versions.props
index 80d6ae6424764a..eb31d88ad56836 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -226,7 +226,7 @@
     <!-- ILCompiler -->
     <MicrosoftDotNetILCompilerVersion>9.0.0-rtm.24511.16</MicrosoftDotNetILCompilerVersion>
     <!-- ICU -->
-    <MicrosoftNETCoreRuntimeICUTransportVersion>9.0.0-rtm.26261.1</MicrosoftNETCoreRuntimeICUTransportVersion>
+    <MicrosoftNETCoreRuntimeICUTransportVersion>9.0.0-rtm.26278.1</MicrosoftNETCoreRuntimeICUTransportVersion>
     <!-- MsQuic -->
     <MicrosoftNativeQuicMsQuicSchannelVersion>2.4.18</MicrosoftNativeQuicMsQuicSchannelVersion>
     <!-- Mono LLVM -->