diff --git a/src/csharp/GrpcApi/Properties/AssemblyInfo.cs b/src/csharp/GrpcApi/Properties/AssemblyInfo.cs
index 96f142dae9a798c8a85be34e3aee2094f7b4ca8d..23fa101170cbcd5476e1f35c1a0f3e2feec29417 100644
--- a/src/csharp/GrpcApi/Properties/AssemblyInfo.cs
+++ b/src/csharp/GrpcApi/Properties/AssemblyInfo.cs
@@ -14,7 +14,7 @@ using System.Runtime.CompilerServices;
 // The assembly version has the format "{Major}.{Minor}.{Build}.{Revision}".
 // The form "{Major}.{Minor}.*" will automatically update the build and revision,
 // and "{Major}.{Minor}.{Build}.*" will update just the revision.
-[assembly: AssemblyVersion ("0.9.*")]
+[assembly: AssemblyVersion ("0.1.*")]
 // The following attributes are used to specify the signing key for the assembly,
 // if desired. See the Mono documentation for more information about signing.
 //[assembly: AssemblyDelaySign(false)]
diff --git a/src/csharp/GrpcApiTests/Properties/AssemblyInfo.cs b/src/csharp/GrpcApiTests/Properties/AssemblyInfo.cs
index ac3cfca52e13f3cc90550e119f2071684b64858c..5f6c4677501306426c553646accd5fdbc6f3382c 100644
--- a/src/csharp/GrpcApiTests/Properties/AssemblyInfo.cs
+++ b/src/csharp/GrpcApiTests/Properties/AssemblyInfo.cs
@@ -14,7 +14,7 @@ using System.Runtime.CompilerServices;
 // The assembly version has the format "{Major}.{Minor}.{Build}.{Revision}".
 // The form "{Major}.{Minor}.*" will automatically update the build and revision,
 // and "{Major}.{Minor}.{Build}.*" will update just the revision.
-[assembly: AssemblyVersion("0.9.*")]
+[assembly: AssemblyVersion("0.1.*")]
 // The following attributes are used to specify the signing key for the assembly,
 // if desired. See the Mono documentation for more information about signing.
 //[assembly: AssemblyDelaySign(false)]
diff --git a/src/csharp/GrpcCore/Properties/AssemblyInfo.cs b/src/csharp/GrpcCore/Properties/AssemblyInfo.cs
index ed3a7af8f409b1a508aab6e5896efa8c32a3dd48..b3b9766667415ff2c28b8a2aa4172bd192a66536 100644
--- a/src/csharp/GrpcCore/Properties/AssemblyInfo.cs
+++ b/src/csharp/GrpcCore/Properties/AssemblyInfo.cs
@@ -14,7 +14,7 @@ using System.Runtime.CompilerServices;
 // The assembly version has the format "{Major}.{Minor}.{Build}.{Revision}".
 // The form "{Major}.{Minor}.*" will automatically update the build and revision,
 // and "{Major}.{Minor}.{Build}.*" will update just the revision.
-[assembly: AssemblyVersion ("0.9.*")]
+[assembly: AssemblyVersion ("0.1.*")]
 // The following attributes are used to specify the signing key for the assembly,
 // if desired. See the Mono documentation for more information about signing.
 //[assembly: AssemblyDelaySign(false)]
diff --git a/src/csharp/GrpcCoreTests/Properties/AssemblyInfo.cs b/src/csharp/GrpcCoreTests/Properties/AssemblyInfo.cs
index 07f35556dfe2aaaf0c96ce0ccc31f47b669b55c8..6d697d0f5de6012ce5d760386a11808cb5b8babb 100644
--- a/src/csharp/GrpcCoreTests/Properties/AssemblyInfo.cs
+++ b/src/csharp/GrpcCoreTests/Properties/AssemblyInfo.cs
@@ -14,7 +14,7 @@ using System.Runtime.CompilerServices;
 // The assembly version has the format "{Major}.{Minor}.{Build}.{Revision}".
 // The form "{Major}.{Minor}.*" will automatically update the build and revision,
 // and "{Major}.{Minor}.{Build}.*" will update just the revision.
-[assembly: AssemblyVersion("0.9.*")]
+[assembly: AssemblyVersion("0.1.*")]
 // The following attributes are used to specify the signing key for the assembly,
 // if desired. See the Mono documentation for more information about signing.
 //[assembly: AssemblyDelaySign(false)]
diff --git a/src/csharp/InteropClient/Properties/AssemblyInfo.cs b/src/csharp/InteropClient/Properties/AssemblyInfo.cs
index 3a13173ac77d66a3bdfcc232e67bda94a22abc95..c7184d7c0bc300c2a2af714cfdb2d16fb98806a5 100644
--- a/src/csharp/InteropClient/Properties/AssemblyInfo.cs
+++ b/src/csharp/InteropClient/Properties/AssemblyInfo.cs
@@ -14,7 +14,7 @@ using System.Runtime.CompilerServices;
 // The assembly version has the format "{Major}.{Minor}.{Build}.{Revision}".
 // The form "{Major}.{Minor}.*" will automatically update the build and revision,
 // and "{Major}.{Minor}.{Build}.*" will update just the revision.
-[assembly: AssemblyVersion("0.9.*")]
+[assembly: AssemblyVersion("0.1.*")]
 // The following attributes are used to specify the signing key for the assembly,
 // if desired. See the Mono documentation for more information about signing.
 //[assembly: AssemblyDelaySign(false)]
diff --git a/src/csharp/MathClient/Properties/AssemblyInfo.cs b/src/csharp/MathClient/Properties/AssemblyInfo.cs
index d24412f497801c8ab0bdd87fc8aa0bafb8275dd5..d69b45a808163f873293105bb66e56212d859885 100644
--- a/src/csharp/MathClient/Properties/AssemblyInfo.cs
+++ b/src/csharp/MathClient/Properties/AssemblyInfo.cs
@@ -14,7 +14,7 @@ using System.Runtime.CompilerServices;
 // The assembly version has the format "{Major}.{Minor}.{Build}.{Revision}".
 // The form "{Major}.{Minor}.*" will automatically update the build and revision,
 // and "{Major}.{Minor}.{Build}.*" will update just the revision.
-[assembly: AssemblyVersion ("0.9.*")]
+[assembly: AssemblyVersion ("0.1.*")]
 // The following attributes are used to specify the signing key for the assembly,
 // if desired. See the Mono documentation for more information about signing.
 //[assembly: AssemblyDelaySign(false)]