diff --git a/.gitmodules b/.gitmodules
index 2b32dd311..513b79923 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -35,7 +35,7 @@
 [submodule "third-party/libdeflate"]
 	path = third-party/libdeflate
 	url = https://github.com/transmission/libdeflate
-	branch = v1.10-plus-cmake
+	branch = v1.11-plus-cmake
 [submodule "third-party/libpsl"]
 	path = third-party/libpsl
 	url = https://github.com/transmission/libpsl.git
diff --git a/third-party/libdeflate b/third-party/libdeflate
index d6d7a247e..a86ca6991 160000
--- a/third-party/libdeflate
+++ b/third-party/libdeflate
@@ -1 +1 @@
-Subproject commit d6d7a247ecad3219e9c5859a3091d77d28f89659
+Subproject commit a86ca6991534fd23e1b8541be55fd80854842f69