diff --git a/.changeset/khaki-flies-roll.md b/.changeset/khaki-flies-roll.md
new file mode 100644
index 000000000..5759e147f
--- /dev/null
+++ b/.changeset/khaki-flies-roll.md
@@ -0,0 +1,5 @@
+---
+"counterfact": minor
+---
+
+change path parameters from [this] to {this} for consistency with OpenAPI
diff --git a/.github/workflows/coveralls.yaml b/.github/workflows/coveralls.yaml
index f7bf1089c..951d9fdbe 100644
--- a/.github/workflows/coveralls.yaml
+++ b/.github/workflows/coveralls.yaml
@@ -1,4 +1,4 @@
-on: ["push", "pull_request"]
+on: ["pull_request"]
 
 name: Coveralls
 
diff --git a/src/registry.js b/src/registry.js
index 6137bbeb1..d1705be20 100644
--- a/src/registry.js
+++ b/src/registry.js
@@ -57,7 +57,7 @@ export class Registry {
         matchedParts.push(segment);
       } else {
         const dynamicSegment = Object.keys(node.children).find(
-          (ds) => ds.startsWith("[") && ds.endsWith("]")
+          (ds) => ds.startsWith("{") && ds.endsWith("}")
         );
 
         if (dynamicSegment) {
diff --git a/test/dispatcher.test.js b/test/dispatcher.test.js
index e12c633bc..4663e97c9 100644
--- a/test/dispatcher.test.js
+++ b/test/dispatcher.test.js
@@ -96,7 +96,7 @@ describe("a dispatcher", () => {
   it("passes a reducer function that can be used to read / update the store", async () => {
     const registry = new Registry({ value: 0 });
 
-    registry.add("/increment/[value]", {
+    registry.add("/increment/{value}", {
       GET({ reduce, path }) {
         const amountToIncrement = Number.parseInt(path.value, 10);
 
@@ -130,7 +130,7 @@ describe("a dispatcher", () => {
   it("allows the store to be mutated directly", async () => {
     const registry = new Registry({ value: 0 });
 
-    registry.add("/increment/[value]", {
+    registry.add("/increment/{value}", {
       GET({ store, path }) {
         const amountToIncrement = Number.parseInt(path.value, 10);
 
@@ -167,7 +167,7 @@ describe("given a in invalid path", () => {
   it("returns a 404 when the route is not found", () => {
     const registry = new Registry();
 
-    registry.add("/your/[side]/[bodyPart]/in/and/your/left/foot/out", {
+    registry.add("/your/{side}/{bodyPart}/in/and/your/left/foot/out", {
       PUT() {
         return {
           status: 201,
@@ -186,7 +186,7 @@ describe("given a in invalid path", () => {
     expect(response.body).toBe(
       "Could not find a PUT method at " +
         "/your/left/foot/in/and/your/right/foot/out\n" +
-        "Got as far as /your/[side]/[bodyPart]/in/and/your"
+        "Got as far as /your/{side}/{bodyPart}/in/and/your"
     );
   });
 });
diff --git a/test/registry.test.js b/test/registry.test.js
index c70c78062..4bbee556b 100644
--- a/test/registry.test.js
+++ b/test/registry.test.js
@@ -88,7 +88,7 @@ describe("a scripted server", () => {
   it("handles a dynamic path", () => {
     const registry = new Registry();
 
-    registry.add("/[organization]/users/[username]/friends/[page]", {
+    registry.add("/{organization}/users/{username}/friends/{page}", {
       GET({ path }) {
         return {
           body: `page ${path.page} of ${path.username}'s friends in ${path.organization}`,