diff --git a/.github/workflows/update.yml b/.github/workflows/update.yml
index aff82b1e59..2678618ec9 100644
--- a/.github/workflows/update.yml
+++ b/.github/workflows/update.yml
@@ -28,7 +28,7 @@ jobs:
     strategy:
         fail-fast: false
         matrix:
-          old_pgr: [3.6.2, 3.6.1, 3.6.0, 3.5.1, 3.5.0, 3.4.2, 3.4.1, 3.4.0, 3.3.5, 3.3.4, 3.3.3, 3.3.2, 3.3.1, 3.3.0, 3.0.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.6, 3.1.0, 3.1.1, 3.1.2, 3.1.3, 3.2.0, 3.2.1, 3.2.2]
+          old_pgr: [3.6.3, 3.6.2, 3.6.1, 3.6.0, 3.5.1, 3.5.0, 3.4.2, 3.4.1, 3.4.0, 3.3.5, 3.3.4, 3.3.3, 3.3.2, 3.3.1, 3.3.0, 3.0.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.6, 3.1.0, 3.1.1, 3.1.2, 3.1.3, 3.2.0, 3.2.1, 3.2.2]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/CMakeLists.txt b/CMakeLists.txt
index b50b854ea5..f10a3566dd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -33,6 +33,7 @@ string(TIMESTAMP COMPILATION_DATE "%Y/%m/%d" UTC)
 
 set(MINORS 3.7 3.6 3.5 3.4 3.3 3.2 3.1 3.0 2.6)
 set(OLD_SIGNATURES
+    3.6.3
     3.6.2
     3.6.1
     3.6.0