diff --git a/example-client/example-client.cabal b/example-client/example-client.cabal
index 78fae931..c1da54cd 100644
--- a/example-client/example-client.cabal
+++ b/example-client/example-client.cabal
@@ -63,7 +63,7 @@ executable example-client
     build-depends: network     >= 2.5 && < 2.6
 
   if flag(Cabal-syntax)
-    build-depends: Cabal-syntax >= 3.7 && < 3.12
+    build-depends: Cabal-syntax >= 3.7 && < 3.14
   else
     build-depends: Cabal        >= 2.2.0.1 && < 3.7,
                    Cabal-syntax <  3.7
diff --git a/hackage-repo-tool/hackage-repo-tool.cabal b/hackage-repo-tool/hackage-repo-tool.cabal
index 7ec7c8b4..7b88ba26 100644
--- a/hackage-repo-tool/hackage-repo-tool.cabal
+++ b/hackage-repo-tool/hackage-repo-tool.cabal
@@ -85,7 +85,7 @@ executable hackage-repo-tool
     build-depends: network     >= 2.5 && < 2.6
 
   if flag(Cabal-syntax)
-    build-depends: Cabal-syntax >= 3.7 && < 3.12
+    build-depends: Cabal-syntax >= 3.7 && < 3.14
   else
     build-depends: Cabal        >= 2.2.0.1 && < 2.6
                              || >= 3.0     && < 3.7,
diff --git a/hackage-security/hackage-security.cabal b/hackage-security/hackage-security.cabal
index e8220de3..58b8ccb6 100644
--- a/hackage-security/hackage-security.cabal
+++ b/hackage-security/hackage-security.cabal
@@ -136,7 +136,7 @@ library
     build-depends:     base       >= 4.11
 
   if flag(Cabal-syntax)
-    build-depends: Cabal-syntax >= 3.7 && < 3.12
+    build-depends: Cabal-syntax >= 3.7 && < 3.14
   else
     build-depends: Cabal        >= 2.2.0.1 && < 2.6
                              || >= 3.0     && < 3.7,
@@ -240,8 +240,8 @@ test-suite TestSuite
                        zlib
 
   if flag(Cabal-syntax)
-    build-depends: Cabal        >= 3.7 && < 3.12,
-                   Cabal-syntax >= 3.7 && < 3.12
+    build-depends: Cabal        >= 3.7 && < 3.14,
+                   Cabal-syntax >= 3.7 && < 3.14
   else
     build-depends: Cabal        >= 2.2.0.1 && < 2.6
                              || >= 3.0     && < 3.7,