diff --git a/lib/features.json b/lib/features.json
index 647ea481d..d55e4406c 100644
--- a/lib/features.json
+++ b/lib/features.json
@@ -7,7 +7,7 @@
   {
     "name": "proportionalLiquidGravity",
     "description": "Liquid gravity is a proportion of normal gravity",
-    "versions": ["1.13", "1.14", "1.15", "1.16", "1.17", "1.18", "1.19", "1.20", "1.21", "26.1"]
+    "versions": ["1.13", "1.14", "1.15", "1.16", "1.17", "1.18", "1.19", "1.20", "1.21", "26.1", "26.2"]
   },
   {
     "name": "velocityBlocksOnCollision",
diff --git a/test/liquidGravity.test.js b/test/liquidGravity.test.js
new file mode 100644
index 000000000..939c3f0a6
--- /dev/null
+++ b/test/liquidGravity.test.js
@@ -0,0 +1,16 @@
+/* eslint-env mocha */
+
+const expect = require('expect')
+const features = require('../lib/features.json')
+
+describe('Liquid gravity feature', () => {
+  it('proportionalLiquidGravity should include 26.1 and 26.2', () => {
+    // Physics() throws if a version's majorVersion matches neither independentLiquidGravity nor
+    // proportionalLiquidGravity (see index.js) — 26.2 was missing here, breaking Physics()
+    // construction for every consumer as soon as minecraft-data ships data for 26.2.
+    const proportional = features.find(f => f.name === 'proportionalLiquidGravity')
+    expect(proportional).toBeTruthy()
+    expect(proportional.versions).toContain('26.1')
+    expect(proportional.versions).toContain('26.2')
+  })
+})