diff --git a/CHANGELOG.md b/CHANGELOG.md
index da7ef9a..b4cc64e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,8 @@ Dates are given in YYYY-MM-DD format.
 - Added Apple iWork document formats to documents extension set
 - Cleaned up and properly documented tests
 - Renamed `Script` (in `formats.rs`) to `Shell`, in line with renaming in `paramaters.rs`
+- Added .rpa (renpy archive) support
+- Added system extension set
 
 ### v0.2.12 (2021-04-14)
 #### Features
diff --git a/Cargo.lock b/Cargo.lock
index 2378ecd..6a94cb3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -29,6 +29,12 @@ version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
 
+[[package]]
+name = "byteorder"
+version = "1.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
+
 [[package]]
 name = "cached"
 version = "0.23.0"
@@ -39,6 +45,16 @@ dependencies = [
  "once_cell",
 ]
 
+[[package]]
+name = "cfb"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca453e8624711b2f0f4eb47076a318feda166252a827ee25d067b43de83dcba0"
+dependencies = [
+ "byteorder",
+ "uuid",
+]
+
 [[package]]
 name = "cfg-if"
 version = "1.0.0"
@@ -177,7 +193,7 @@ dependencies = [
 
 [[package]]
 name = "fif"
-version = "0.2.11"
+version = "0.2.12"
 dependencies = [
  "cached",
  "cfg-if",
@@ -250,9 +266,12 @@ dependencies = [
 
 [[package]]
 name = "infer"
-version = "0.3.7"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "865e8a58ae8e24d2c4412c31344afa1d302a3740ad67528c10f50d6876cdcf55"
+checksum = "f92b41dab759f9e8427c03f519c344a14655490b8db548dac1e57a75b3258391"
+dependencies = [
+ "cfb",
+]
 
 [[package]]
 name = "instant"
@@ -654,6 +673,12 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "39ec24b3121d976906ece63c9daad25b85969647682eee313cb5779fdd69e14e"
 
+[[package]]
+name = "uuid"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bc5cf98d8186244414c848017f0e2676b3fcb46807f6668a97dfe67359a3c4b7"
+
 [[package]]
 name = "vec_map"
 version = "0.8.2"