diff --git a/build/targets/AssemblyVersions.props b/build/targets/AssemblyVersions.props
index 10784c9c0d1..b307b747716 100644
--- a/build/targets/AssemblyVersions.props
+++ b/build/targets/AssemblyVersions.props
@@ -21,7 +21,7 @@
 
     <FSCoreVersion>4.5.0.0</FSCoreVersion>
     <FSCoreMajorVersion>4.5</FSCoreMajorVersion>
-    <FSCorePackageVersion>4.5.3</FSCorePackageVersion>
+    <FSCorePackageVersion>4.5.5</FSCorePackageVersion>
     <FSProductVersion>10.2.3.0</FSProductVersion>
     <FSPackageVersion>10.2.3</FSPackageVersion>
     <FSPackageMajorVersion>10.2</FSPackageMajorVersion>
diff --git a/src/FSharpSource.Settings.targets b/src/FSharpSource.Settings.targets
index 9887505a1f0..e229fc935f3 100644
--- a/src/FSharpSource.Settings.targets
+++ b/src/FSharpSource.Settings.targets
@@ -22,7 +22,7 @@
   <PropertyGroup>
     <FSCoreVersion>4.5.0.0</FSCoreVersion>
     <FSCoreMajorVersion>4.5</FSCoreMajorVersion>
-    <FSCorePackageVersion>4.5.3</FSCorePackageVersion>
+    <FSCorePackageVersion>4.5.5</FSCorePackageVersion>
     <FSProductVersion>10.2.3.0</FSProductVersion>
     <FSPackageVersion>10.2.3</FSPackageVersion>
     <FSPackageMajorVersion>10.2</FSPackageMajorVersion>