diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5378d2cde..30fe8da4e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -53,7 +53,7 @@ jobs:
         args: ["--no-default-features", "", "--features all"]
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
     - name: Install Rust
       uses: hecrj/setup-rust-action@v1
       with:
@@ -70,22 +70,22 @@ jobs:
         features: ["hsm", "hsm,hsm-tests-kmip"]
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v1
+      uses: actions/checkout@v4
 
     - name: Install Rust
-      uses: hecrj/setup-rust-action@v1
+      uses: hecrj/setup-rust-action@v2
       with:
         rust-version: ${{ matrix.rust }}
 
-    - uses: actions/setup-python@v2
+    - uses: actions/setup-python@v4
       with:
-        python-version: '3.x'
+        # Pin to Python 3.11 because 3.12 removes the ssl.wrap_socket()
+        # function which PyKMIP uses.
+        python-version: '3.11'
 
     - name: Install PyKMIP
-      uses: BSFishy/pip-action@v1
-      with:
-        packages: pykmip
-        constraints: test-resources/pykmip/constraints.txt
+      run: |
+        pip install pykmip --constraint test-resources/pykmip/constraints.txt
 
     - name: Compile the tests
       run: |
@@ -116,10 +116,10 @@ jobs:
         features: ["hsm,hsm-tests-pkcs11"]
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v1
+      uses: actions/checkout@v2
 
     - name: Install Rust
-      uses: hecrj/setup-rust-action@v1
+      uses: hecrj/setup-rust-action@v2
       with:
         rust-version: ${{ matrix.rust }}
 
diff --git a/Cargo.lock b/Cargo.lock
index a95a3b1f9..1d8cd8e27 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1048,7 +1048,7 @@ dependencies = [
 
 [[package]]
 name = "krill"
-version = "0.14.2"
+version = "0.15.0-dev"
 dependencies = [
  "backoff",
  "base64 0.13.1",
diff --git a/Cargo.toml b/Cargo.toml
index de4471cda..a3ca30015 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 # Note: some of these values are also used when building Debian packages below.
 name = "krill"
-version = "0.14.2"
+version = "0.15.0-dev"
 edition = "2018"
 rust-version = "1.65"
 authors = ["NLnet Labs <rpki-team@nlnetlabs.nl>"]
diff --git a/README.md b/README.md
index 64b6fa27c..b25c971d9 100644
--- a/README.md
+++ b/README.md
@@ -25,6 +25,8 @@ in this [blog post](https://blog.nlnetlabs.nl/testing-the-waters-with-krill/).
 
 # Changelog
 
+## Unreleased Version
+
 ## 0.14.2 'Extra, Extra, Extra!'
 
 This release fixes an additional corner case in the migration code that affects