diff --git a/meson.build b/meson.build
index 4d49ff92..851fbc60 100644
--- a/meson.build
+++ b/meson.build
@@ -505,7 +505,10 @@ conf_data.set('CONFIG_LIBCSS', false)
 cssdeps = false
 
 if conf_data.get('CONFIG_ECMASCRIPT_SMJS') or conf_data.get('CONFIG_QUICKJS') or conf_data.get('CONFIG_MUJS')
-    cssdeps = dependency('libcss', static: st, version: '>=0.9.2')
+    cssdeps = dependency('libcss', static: st, version: '>=0.9.2', required: false)
+    if not cssdeps.found()
+        cssdeps = dependency('libcss', static: true, version: '>=0.9.2')
+    endif
     deps += cssdeps
     conf_data.set('CONFIG_LIBCSS', true)
 endif
@@ -514,17 +517,26 @@ conf_data.set('CONFIG_LIBDOM', false)
 libdomdeps = false
 
 if conf_data.get('CONFIG_ECMASCRIPT_SMJS') or conf_data.get('CONFIG_QUICKJS') or conf_data.get('CONFIG_MUJS')
-    libdomdeps = dependency('libdom', static: st, version: '>=0.4.2')
+    libdomdeps = dependency('libdom', static: st, version: '>=0.4.2', required: false)
+    if not libdomdeps.found()
+        libdomdeps = dependency('libdom', static: true, version: '>=0.4.2')
+    endif
     deps += libdomdeps
     conf_data.set('CONFIG_LIBDOM', true)
 endif
 
 if not conf_data.get('CONFIG_LIBCSS') and get_option('libcss')
-    cssdeps = dependency('libcss', static: st, version: '>=0.9.2')
+    cssdeps = dependency('libcss', static: st, version: '>=0.9.2', required: false)
+    if not cssdeps.found()
+        cssdeps = dependency('libcss', static: true, version: '>=0.9.2')
+    endif
     deps += cssdeps
     conf_data.set('CONFIG_LIBCSS', true)
     if not conf_data.get('CONFIG_LIBDOM')
-        libdomdeps = dependency('libdom', static: st, version: '>=0.4.2')
+        libdomdeps = dependency('libdom', static: st, version: '>=0.4.2', required: false)
+        if not libdomdeps.found()
+            libdomdeps = dependency('libdom', static: true, version: '>=0.4.2')
+        endif
         deps += libdomdeps
         conf_data.set('CONFIG_LIBDOM', true)
     endif