diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d4cb05b9..d9520135 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -144,3 +144,27 @@ jobs:
           - s390x-unknown-linux-gnu
           - x86_64-unknown-linux-gnu
           - x86_64-unknown-linux-musl
+
+  minimal-versions:
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+        with:
+          submodules: true
+
+      - run: |
+          rustup toolchain install nightly --profile minimal --no-self-update
+          cargo +nightly update -Zminimal-versions
+
+      - run: cargo build
+      - run: cargo build --features zlib-ng --no-default-features
+      - run: cargo build --no-default-features --features zlib-ng-no-cmake-experimental-community-maintained || echo "::warning::failed to build libz-ng with --features zlib-ng-no-cmake-experimental-community-maintained"
+
+
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - windows-2022
+          - macos-latest
+          - ubuntu-latest
diff --git a/Cargo-zng.toml b/Cargo-zng.toml
index 9a6a3ee6..97b9c694 100644
--- a/Cargo-zng.toml
+++ b/Cargo-zng.toml
@@ -1,6 +1,6 @@
 [package]
 name = "libz-ng-sys"
-version = "1.1.15"
+version = "1.1.16"
 authors = [
     "Alex Crichton <alex@alexcrichton.com>",
     "Josh Triplett <josh@joshtriplett.org>",
@@ -36,7 +36,7 @@ members = ["systest"]
 libc = "0.2.43"
 
 [build-dependencies]
-cmake = "0.1"
+cmake = "0.1.50"
 
 [lints.rust]
 unexpected_cfgs = { level = "warn", check-cfg = ['cfg(zng)'] }
diff --git a/Cargo.toml b/Cargo.toml
index 84ba77be..938f75f9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "libz-sys"
-version = "1.1.19"
+version = "1.1.20"
 authors = [
     "Alex Crichton <alex@alexcrichton.com>",
     "Josh Triplett <josh@joshtriplett.org>",
@@ -56,7 +56,7 @@ libc = { version = "0.2.43", optional = true }
 pkg-config = "0.3.9"
 cc = "1.0.98"
 cmake = { version = "0.1.50", optional = true }
-vcpkg = "0.2"
+vcpkg = "0.2.11"
 
 [features]
 default = ["libc", "stock-zlib"]