diff --git a/aedi/target/library_tier1.py b/aedi/target/library_tier1.py
index 6faad341..46df7adc 100644
--- a/aedi/target/library_tier1.py
+++ b/aedi/target/library_tier1.py
@@ -58,8 +58,8 @@ class FfiTarget(ConfigureMakeStaticDependencyTarget):
 
     def prepare_source(self, state: BuildState):
         state.download_source(
-            'https://github.com/libffi/libffi/releases/download/v3.3/libffi-3.3.tar.gz',
-            '72fba7922703ddfa7a028d513ac15a85c8d54c8d67f55fa5a4802885dc652056')
+            'https://github.com/libffi/libffi/releases/download/v3.4.2/libffi-3.4.2.tar.gz',
+            '540fb721619a6aba3bdeef7d940d8e9e0e6d2c193595bc243241b77ff9e93620')
 
     def detect(self, state: BuildState) -> bool:
         return os.path.exists(state.source + 'libffi.pc.in')