diff --git a/packaging/dotnet-core/README.md b/packaging/dotnet-core/README.md
index d4d22074..66ec9703 100644
--- a/packaging/dotnet-core/README.md
+++ b/packaging/dotnet-core/README.md
@@ -19,8 +19,8 @@ The metadata for the NuGet package is located in `libsodium.props`.
 
 **Making a pre-release**
 
-1. Run `python3 prepare.py 1.0.11-preview-01` to generate the `Makefile`.
-   `1.0.11` is the libsodium version number; `01` is the pre-release
+1. Run `python3 prepare.py 1.0.12-preview-01` to generate the `Makefile`.
+   `1.0.12` is the libsodium version number; `01` is the pre-release
    number and needs to be incremented for each pre-release.
 2. Take a look at the generated `Makefile`. It uses `sudo` a few times.
 3. Run `make` to download and build the binaries and create the NuGet
@@ -36,6 +36,6 @@ The metadata for the NuGet package is located in `libsodium.props`.
 
 **Making a release**
 
-1. Run `python3 prepare.py 1.0.11` to generate the `Makefile`.
+1. Run `python3 prepare.py 1.0.12` to generate the `Makefile`.
 
 The remaining steps are the same.
diff --git a/packaging/dotnet-core/prepare.py b/packaging/dotnet-core/prepare.py
index 00882546..e9f11eef 100644
--- a/packaging/dotnet-core/prepare.py
+++ b/packaging/dotnet-core/prepare.py
@@ -175,10 +175,10 @@ def main(args):
     print('       python3 prepare.py <version>[-preview-##]')
     print()
     print('Examples:')
-    print('       python3 prepare.py 1.0.11-preview-01')
-    print('       python3 prepare.py 1.0.11-preview-02')
-    print('       python3 prepare.py 1.0.11-preview-03')
-    print('       python3 prepare.py 1.0.11')
+    print('       python3 prepare.py 1.0.12-preview-01')
+    print('       python3 prepare.py 1.0.12-preview-02')
+    print('       python3 prepare.py 1.0.12-preview-03')
+    print('       python3 prepare.py 1.0.12')
     return 1
 
   version = Version(m.group(1), m.group(2))