diff --git a/Cargo.lock b/Cargo.lock
index 68e92c004..b34471ef5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -680,19 +680,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "nix"
-version = "0.12.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "cc 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
- "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.57 (registry+https://github.com/rust-lang/crates.io-index)",
- "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "nix"
-version = "0.13.0"
+version = "0.14.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1422,7 +1410,7 @@ dependencies = [
  "cranelift-native 0.31.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "hashbrown 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.57 (registry+https://github.com/rust-lang/crates.io-index)",
- "nix 0.13.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "nix 0.14.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rayon 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.92 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde-bench 0.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1514,7 +1502,7 @@ dependencies = [
  "inkwell 0.1.0 (git+https://github.com/wasmerio/inkwell?branch=llvm7-0)",
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.57 (registry+https://github.com/rust-lang/crates.io-index)",
- "nix 0.13.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "nix 0.14.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1577,7 +1565,7 @@ dependencies = [
  "indexmap 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.57 (registry+https://github.com/rust-lang/crates.io-index)",
- "nix 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "nix 0.14.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "page_size 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1601,7 +1589,7 @@ dependencies = [
  "hashbrown 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.57 (registry+https://github.com/rust-lang/crates.io-index)",
- "nix 0.13.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "nix 0.14.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "smallvec 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasmer-runtime-core 0.5.5",
  "wasmparser 0.32.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1806,8 +1794,7 @@ dependencies = [
 "checksum memmap 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "e2ffa2c986de11a9df78620c01eeaaf27d94d3ff02bf81bfcca953102dd0c6ff"
 "checksum memmap 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "6585fd95e7bb50d6cc31e20d4cf9afb4e2ba16c5846fc76793f11218da9c475b"
 "checksum memoffset 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "0f9dc261e2b62d7a622bf416ea3c5245cdd5d9a7fcc428c0d06804dfce1775b3"
-"checksum nix 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)" = "921f61dc817b379d0834e45d5ec45beaacfae97082090a49c2cf30dcbc30206f"
-"checksum nix 0.13.0 (registry+https://github.com/rust-lang/crates.io-index)" = "46f0f3210768d796e8fa79ec70ee6af172dacbe7147f5e69be5240a47778302b"
+"checksum nix 0.14.1 (registry+https://github.com/rust-lang/crates.io-index)" = "6c722bee1037d430d0f8e687bbdbf222f27cc6e4e68d5caf630857bb2b6dbdce"
 "checksum nodrop 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)" = "2f9667ddcc6cc8a43afc9b7917599d7216aa09c463919ea32c59ed6cac8bc945"
 "checksum nom 4.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "2ad2a91a8e869eeb30b9cb3119ae87773a8f4ae617f41b1eb9c154b2905f7bd6"
 "checksum num-traits 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)" = "92e5113e9fd4cc14ded8e499429f396a20f98c772a47cc8622a736e1ec843c31"
diff --git a/install.sh b/install.sh
index 8d4e1e9d2..542e97e17 100755
--- a/install.sh
+++ b/install.sh
@@ -365,10 +365,14 @@ wasmer_download() {
 
   # determine install directory if required
   if [ -z "$INSTALL_DIRECTORY" ]; then
-      # findWasmerBinDirectory INSTALL_DIRECTORY
-      INSTALL_DIRECTORY="$HOME/.wasmer"
+      if [ -z "$WASMER_DIR" ]; then
+          # If WASMER_DIR is not present
+          INSTALL_DIRECTORY="$HOME/.wasmer"
+      else
+          # If WASMER_DIR is present
+          INSTALL_DIRECTORY=WASMER_DIR
+      fi
   fi
-  WASMER=INSTALL_DIRECTORY
 
   # assemble expected release artifact name
   BINARY="wasmer-${OS}-${ARCH}.tar.gz"
diff --git a/lib/clif-backend/Cargo.toml b/lib/clif-backend/Cargo.toml
index e39e1547a..e2c3dce0c 100644
--- a/lib/clif-backend/Cargo.toml
+++ b/lib/clif-backend/Cargo.toml
@@ -18,7 +18,7 @@ hashbrown = "0.1"
 target-lexicon = "0.4.0"
 wasmparser = "0.32.1"
 byteorder = "1"
-nix = "0.13.0"
+nix = "0.14.0"
 libc = "0.2.49"
 rayon = "1.0"
 
diff --git a/lib/llvm-backend/Cargo.toml b/lib/llvm-backend/Cargo.toml
index beb921dfa..766fbd95e 100644
--- a/lib/llvm-backend/Cargo.toml
+++ b/lib/llvm-backend/Cargo.toml
@@ -12,7 +12,7 @@ hashbrown = "0.1.8"
 smallvec = "0.6.8"
 goblin = "0.0.20"
 libc = "0.2.49"
-nix = "0.13.0"
+nix = "0.14.0"
 capstone = { version = "0.5.0", optional = true }
 
 [build-dependencies]
diff --git a/lib/runtime-core/Cargo.toml b/lib/runtime-core/Cargo.toml
index efded2fb3..86e2d99ff 100644
--- a/lib/runtime-core/Cargo.toml
+++ b/lib/runtime-core/Cargo.toml
@@ -8,7 +8,7 @@ repository = "https://github.com/wasmerio/wasmer"
 edition = "2018"
 
 [dependencies]
-nix = "0.12.0"
+nix = "0.14.0"
 page_size = "0.4.1"
 wasmparser = "0.32.1"
 parking_lot = "0.7.1"
diff --git a/lib/singlepass-backend/Cargo.toml b/lib/singlepass-backend/Cargo.toml
index d7aa84bf7..2a8e5c647 100644
--- a/lib/singlepass-backend/Cargo.toml
+++ b/lib/singlepass-backend/Cargo.toml
@@ -14,7 +14,7 @@ dynasm = "0.3.2"
 dynasmrt = "0.3.1"
 lazy_static = "1.2.0"
 byteorder = "1"
-nix = "0.13.0"
+nix = "0.14.0"
 libc = "0.2.49"
 smallvec = "0.6.9"
 hashbrown = "0.1"