diff --git a/easybuild/easyconfigs/l/LLVM/LLVM-18.1.8-GCCcore-13.3.0.eb b/easybuild/easyconfigs/l/LLVM/LLVM-18.1.8-GCCcore-13.3.0.eb
index 55ec923d349f..71e64a91e943 100644
--- a/easybuild/easyconfigs/l/LLVM/LLVM-18.1.8-GCCcore-13.3.0.eb
+++ b/easybuild/easyconfigs/l/LLVM/LLVM-18.1.8-GCCcore-13.3.0.eb
@@ -48,6 +48,7 @@ dependencies = [
     ('ncurses', '6.5'),
     ('zlib', '1.3.1'),
     ('Z3', '4.13.0'),
+    ('zstd', '1.5.6'),
 ]
 
 build_shared_libs = True
diff --git a/easybuild/easyconfigs/l/LLVM/LLVM-19.1.7-GCCcore-13.3.0.eb b/easybuild/easyconfigs/l/LLVM/LLVM-19.1.7-GCCcore-13.3.0.eb
index 6e37f4bb7907..45cf30d664df 100644
--- a/easybuild/easyconfigs/l/LLVM/LLVM-19.1.7-GCCcore-13.3.0.eb
+++ b/easybuild/easyconfigs/l/LLVM/LLVM-19.1.7-GCCcore-13.3.0.eb
@@ -51,6 +51,7 @@ dependencies = [
     ('ncurses', '6.5'),
     ('zlib', '1.3.1'),
     ('Z3', '4.13.0'),
+    ('zstd', '1.5.6'),
 ]
 
 build_shared_libs = True