diff --git a/NEWS.md b/NEWS.md
index 07b422c0..a0dd294a 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,13 +1,17 @@
 # webR (development version)
 
-## Bug Fixes
-
-* (Regression, again) Fix linking to the FreeType library when building webR (See #504 for details).
-
 ## New features
 
 * Support sharing URLs and initial editor file population in the webR application. See `src/examples/embed/` for an example of iframe embedding with `postMessage()`. (#554)
 
+## Breaking changes
+
+* Updated Fontconfig to version 2.15.0 (#544).
+
+## Bug Fixes
+
+* (Regression, again) Fix linking to the FreeType library when building webR (See #504 for details).
+
 # webR 0.5.3
 
 ## Bug Fixes
diff --git a/libs/Makefile b/libs/Makefile
index a2607089..32998750 100644
--- a/libs/Makefile
+++ b/libs/Makefile
@@ -61,11 +61,11 @@ $(EM_PKG_CONFIG_PATH)/%.pc: recipes/**/%.pc
 
 $(DEFAULT_WASM_BINS_INST): $(DEFAULT_WASM_LIBS)
 	@mkdir -p $(HOST)/bin
-	cp "$(patsubst $(HOST)/bin/%,$(WASM)/bin/%,$@)" "$@"
+	install "$(patsubst $(HOST)/bin/%,$(WASM)/bin/%,$@)" "$@"
 
 $(OPTIONAL_WASM_BINS_INST): $(OPTIONAL_WASM_LIBS)
 	@mkdir -p $(HOST)/bin
-	cp "$(patsubst $(HOST)/bin/%,$(WASM)/bin/%,$@)" "$@"
+	install "$(patsubst $(HOST)/bin/%,$(WASM)/bin/%,$@)" "$@"
 
 .PHONY: clean-bins
 clean-bins:
diff --git a/libs/recipes/fontconfig/rules.mk b/libs/recipes/fontconfig/rules.mk
index 3c7f0b33..26f92f18 100644
--- a/libs/recipes/fontconfig/rules.mk
+++ b/libs/recipes/fontconfig/rules.mk
@@ -1,6 +1,6 @@
-FC_VERSION = 2.12.5
-FC_TARBALL = $(DOWNLOAD)/fontconfig-$(FC_VERSION).tar.gz
-FC_URL = https://www.freedesktop.org/software/fontconfig/release/fontconfig-$(FC_VERSION).tar.gz
+FC_VERSION = 2.15.0
+FC_TARBALL = $(DOWNLOAD)/fontconfig-$(FC_VERSION).tar.xz
+FC_URL = https://www.freedesktop.org/software/fontconfig/release/fontconfig-$(FC_VERSION).tar.xz
 
 .PHONY: fontconfig
 fontconfig: $(FC_DEPS)
@@ -12,7 +12,7 @@ $(FC_TARBALL):
 $(FC_DEPS): $(FC_TARBALL) $(LIBXML2_WASM_LIB) $(EM_PKG_CONFIG_PATH)/freetype2.pc
 	rm -rf $(BUILD)/fontconfig-$(FC_VERSION)
 	mkdir -p $(BUILD)/fontconfig-$(FC_VERSION)/build
-	tar -C $(BUILD) -xf $(FC_TARBALL) --exclude=fcobjshash.h
+	tar -C $(BUILD) -xf $(FC_TARBALL)
 	cp -r "$(WEBR_ROOT)/patches/fontconfig-$(FC_VERSION)/." \
 	  "$(BUILD)/fontconfig-$(FC_VERSION)/patches"
 	cd $(BUILD)/fontconfig-$(FC_VERSION)/build && quilt push -a && \
diff --git a/libs/recipes/freetype2/freetype2.pc b/libs/recipes/freetype2/freetype2.pc
index fdd79457..e8c31f65 100644
--- a/libs/recipes/freetype2/freetype2.pc
+++ b/libs/recipes/freetype2/freetype2.pc
@@ -1,5 +1,5 @@
 Name: freetype
 Description: Emscripten ports version of freetype library
-Version: 18.0.12
+Version: 26.2.20
 Cflags: --use-port=freetype
 Libs: --use-port=freetype
diff --git a/patches/fontconfig-2.12.5/fix-double-sysroot.diff b/patches/fontconfig-2.12.5/fix-double-sysroot.diff
deleted file mode 100644
index 20ed6a5f..00000000
--- a/patches/fontconfig-2.12.5/fix-double-sysroot.diff
+++ /dev/null
@@ -1,14 +0,0 @@
-Index: fontconfig-2.12.5/src/fcxml.c
-===================================================================
---- fontconfig-2.12.5.orig/src/fcxml.c
-+++ fontconfig-2.12.5/src/fcxml.c
-@@ -3372,9 +3372,6 @@ FcConfigParseAndLoad (FcConfig	    *config,
- 	ret = FcTrue;
- 	goto bail0;
-     }
--    if (sysroot)
--	filename = FcStrBuildFilename (sysroot, f, NULL);
--    else
- 	filename = FcStrdup (f);
-     FcStrFree (f);
- 
diff --git a/patches/fontconfig-2.15.0/fix-double-sysroot.diff b/patches/fontconfig-2.15.0/fix-double-sysroot.diff
new file mode 100644
index 00000000..5c2214fb
--- /dev/null
+++ b/patches/fontconfig-2.15.0/fix-double-sysroot.diff
@@ -0,0 +1,16 @@
+Index: fontconfig-2.15.0/src/fccfg.c
+===================================================================
+--- fontconfig-2.15.0.orig/src/fccfg.c
++++ fontconfig-2.15.0/src/fccfg.c
+@@ -2716,10 +2716,7 @@ FcConfigGetFilename (FcConfig      *conf
+ 	{
+ 	    FcChar8 *s;
+ 
+-	    if (sysroot)
+-		s = FcStrBuildFilename (sysroot, *p, NULL);
+-	    else
+-		s = *p;
++		s = FcStrdup(*p);
+ 	    file = FcConfigFileExists (s, url);
+ 	    if (sysroot)
+ 		FcStrFree (s);
diff --git a/patches/fontconfig-2.12.5/series b/patches/fontconfig-2.15.0/series
similarity index 100%
rename from patches/fontconfig-2.12.5/series
rename to patches/fontconfig-2.15.0/series
diff --git a/patches/fontconfig-2.12.5/syscache-always-valid.diff b/patches/fontconfig-2.15.0/syscache-always-valid.diff
similarity index 52%
rename from patches/fontconfig-2.12.5/syscache-always-valid.diff
rename to patches/fontconfig-2.15.0/syscache-always-valid.diff
index 15645e41..4745e4a9 100644
--- a/patches/fontconfig-2.12.5/syscache-always-valid.diff
+++ b/patches/fontconfig-2.15.0/syscache-always-valid.diff
@@ -1,13 +1,13 @@
-Index: fontconfig-2.12.5/src/fccache.c
+Index: fontconfig-2.15.0/src/fccache.c
 ===================================================================
---- fontconfig-2.12.5.orig/src/fccache.c
-+++ fontconfig-2.12.5/src/fccache.c
-@@ -584,7 +584,7 @@ FcCacheTimeValid (FcConfig *config, FcCache *cache, st
+--- fontconfig-2.15.0.orig/src/fccache.c
++++ fontconfig-2.15.0/src/fccache.c
+@@ -842,7 +842,7 @@ FcCacheTimeValid (FcConfig *config, FcCa
  	printf ("FcCacheTimeValid dir \"%s\" cache checksum %d dir checksum %d\n",
  		FcCacheDir (cache), cache->checksum, (int) dir_stat->st_mtime);
  #endif
 -
 +    if (strcmp(FcCacheDir(cache), "/usr/share/fonts") == 0) return FcTrue;
-     return cache->checksum == (int) dir_stat->st_mtime && fnano;
+     return dir_stat->st_mtime == 0 || (cache->checksum == (int) dir_stat->st_mtime && fnano);
  }