diff --git a/apps/server/src/git/Layers/GitManager.test.ts b/apps/server/src/git/Layers/GitManager.test.ts
index db82ea4c72..a3d72bfa29 100644
--- a/apps/server/src/git/Layers/GitManager.test.ts
+++ b/apps/server/src/git/Layers/GitManager.test.ts
@@ -352,6 +352,16 @@ function createGitHubCliWithFakeGh(scenario: FakeGhScenario = {}): {
       });
     }
 
+    if (args[0] === "pr" && args[1] === "edit") {
+      return Effect.succeed({
+        stdout: "",
+        stderr: "",
+        code: 0,
+        signal: null,
+        timedOut: false,
+      });
+    }
+
     if (args[0] === "repo" && args[1] === "view") {
       const repository = args[2];
       if (typeof repository === "string" && args.includes("nameWithOwner,url,sshUrl")) {
@@ -464,6 +474,17 @@ function createGitHubCliWithFakeGh(scenario: FakeGhScenario = {}): {
           cwd: input.cwd,
           args: ["pr", "checkout", input.reference, ...(input.force ? ["--force"] : [])],
         }).pipe(Effect.asVoid),
+      editPullRequest: (input) =>
+        execute({
+          cwd: input.cwd,
+          args: [
+            "pr",
+            "edit",
+            String(input.number),
+            ...(input.title ? ["--title", input.title] : []),
+            ...(input.bodyFile ? ["--body-file", input.bodyFile] : []),
+          ],
+        }).pipe(Effect.asVoid),
     },
     ghCalls,
   };
diff --git a/apps/server/src/git/Layers/GitManager.ts b/apps/server/src/git/Layers/GitManager.ts
index dc082674b7..64d0ee8952 100644
--- a/apps/server/src/git/Layers/GitManager.ts
+++ b/apps/server/src/git/Layers/GitManager.ts
@@ -889,19 +889,9 @@ export const makeGitManager = Effect.fn("makeGitManager")(function* () {
       upstreamRef: details.upstreamRef,
     });
 
+    const baseBranch = yield* resolveBaseBranch(cwd, branch, details.upstreamRef, headContext);
     const existing = yield* findOpenPr(cwd, headContext.headSelectors);
-    if (existing) {
-      return {
-        status: "opened_existing" as const,
-        url: existing.url,
-        number: existing.number,
-        baseBranch: existing.baseRefName,
-        headBranch: existing.headRefName,
-        title: existing.title,
-      };
-    }
 
-    const baseBranch = yield* resolveBaseBranch(cwd, branch, details.upstreamRef, headContext);
     const rangeContext = yield* gitCore.readRangeContext(cwd, baseBranch);
 
     const generated = yield* textGeneration.generatePrContent({
@@ -922,6 +912,27 @@ export const makeGitManager = Effect.fn("makeGitManager")(function* () {
           gitManagerError("runPrStep", "Failed to write pull request body temp file.", cause),
         ),
       );
+
+    if (existing) {
+      yield* gitHubCli
+        .editPullRequest({
+          cwd,
+          number: existing.number,
+          title: generated.title,
+          bodyFile,
+        })
+        .pipe(Effect.ensuring(fileSystem.remove(bodyFile).pipe(Effect.catch(() => Effect.void))));
+
+      return {
+        status: "opened_existing" as const,
+        url: existing.url,
+        number: existing.number,
+        baseBranch: existing.baseRefName,
+        headBranch: existing.headRefName,
+        title: generated.title,
+      };
+    }
+
     yield* gitHubCli
       .createPullRequest({
         cwd,