diff --git a/Cargo.lock b/Cargo.lock
index 7bbb6f97..0db1f61f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -25,9 +25,9 @@ dependencies = [
 
 [[package]]
 name = "anyhow"
-version = "1.0.57"
+version = "1.0.58"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "08f9b8508dccb7687a1d6c4ce66b2b0ecef467c94667de27d8d7fe1f8d2a9cdc"
+checksum = "bb07d2053ccdbe10e2af2995a2f116c1330396493dc1269f6a91d0ae82e19704"
 
 [[package]]
 name = "arklib"
@@ -501,6 +501,24 @@ dependencies = [
  "adler32",
 ]
 
+[[package]]
+name = "iter_tools"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5ee1f87ffbdadd88f99d74b86f5139a74b37b4a8d3d08b18e227a96147e27151"
+dependencies = [
+ "itertools",
+]
+
+[[package]]
+name = "itertools"
+version = "0.10.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a9a9d19fa1e79b6215ff29b9d6880b706147f16e9b1dbb1e4e5947b5b02bc5e3"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "jpeg-decoder"
 version = "0.2.6"
@@ -578,6 +596,12 @@ version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a3e378b66a060d48947b590737b30a1be76706c8dd7b8ba0f2fe3989c68a853f"
 
+[[package]]
+name = "maybe-owned"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4facc753ae494aeb6e3c22f839b158aebd4f9270f55cd3c79906c45476c47ab4"
+
 [[package]]
 name = "memchr"
 version = "2.5.0"
@@ -692,9 +716,9 @@ checksum = "21326818e99cfe6ce1e524c2a805c189a99b5ae555a35d19f9a284b427d86afa"
 
 [[package]]
 name = "pdfium-render"
-version = "0.7.5"
+version = "0.7.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "54152d97c4972b2d05970e085d90ac0400723a1c4d67867775b0bcc6846a9223"
+checksum = "8d53f27caa751104cc84d26f8c9009052e521e0b8e71fbc3cb1c062d31eeef18"
 dependencies = [
  "bindgen",
  "bitflags",
@@ -702,10 +726,12 @@ dependencies = [
  "console_error_panic_hook",
  "console_log",
  "image",
+ "iter_tools",
  "js-sys",
  "lazy_static",
  "libloading",
  "log",
+ "maybe-owned",
  "utf16string",
  "wasm-bindgen",
  "wasm-bindgen-futures",
diff --git a/Cargo.toml b/Cargo.toml
index 5d57b255..331d32f6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,15 +8,15 @@ name = "arklib"
 crate-type = ["rlib"]
 
 [dependencies]
-log = { version = "0.4.14", features = ["release_max_level_off"] }
-crc32fast = "1.3.0"
+log = { version = "0.4.17", features = ["release_max_level_off"] }
+crc32fast = "1.3.2"
 walkdir = "2.3.2"
-anyhow = "1.0"
+anyhow = "1.0.58"
 env_logger = "0.9.0"
 lazy_static = "1.4.0"
 canonical-path = "2.0.2"
 image = "0.24.2"
-pdfium-render = "0.7.1"
+pdfium-render = { version = "0.7.10", features = ["thread_safe"] }
 libloading = "0.7.3"
 
 [dev-dependencies]