diff --git a/api/Cargo.toml b/api/Cargo.toml
index d6583c44..bece7f68 100644
--- a/api/Cargo.toml
+++ b/api/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "api"
-version = "0.4.0"
+version = "0.4.1"
 authors = [
     "DanieleDiBenedetto <daniele@horizenlabs.io>",
     "Oleksandr Iozhytsia <oleksandr@zensystem.io>",
@@ -14,21 +14,21 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-algebra = {features = ["tweedle"], git = "https://github.com/HorizenOfficial/ginger-lib.git", tag = "0.3.0"}
-primitives = {features = ["tweedle", "merkle_tree"], git = "https://github.com/HorizenOfficial/ginger-lib.git", tag = "0.3.0"}
+algebra = {features = ["tweedle"], git = "https://github.com/HorizenOfficial/ginger-lib.git", tag = "0.3.1"}
+primitives = {features = ["tweedle", "merkle_tree"], git = "https://github.com/HorizenOfficial/ginger-lib.git", tag = "0.3.1"}
 
-cctp_primitives = { git = "https://github.com/HorizenOfficial/zendoo-cctp-lib.git", tag = "0.1.0" }
+cctp_primitives = { git = "https://github.com/HorizenOfficial/zendoo-cctp-lib.git", tag = "0.1.1" }
 
 #ouroboros = {path = "../ouroboros"}
 demo-circuit = {path = "../demo-circuit"}
 
-jni = "0.19.0"
-derivative = "2.2.0"
-lazy_static = "1"
-radix_trie = "0.2.1"
-rand = { version = "0.8.4" }
-rand_xorshift = { version = "0.3.0" }
-blake2 = { version = "0.8.1", default-features = false }
+jni = "=0.19.0"
+derivative = "=2.2.0"
+lazy_static = "=1.4.0"
+radix_trie = "=0.2.1"
+rand = { version = "=0.8.4" }
+rand_xorshift = { version = "=0.3.0" }
+blake2 = { version = "=0.8.1", default-features = false }
 
 [lib]
 name = "zendoo_sc"
diff --git a/demo-circuit/Cargo.toml b/demo-circuit/Cargo.toml
index 421eba17..7c9fcca0 100644
--- a/demo-circuit/Cargo.toml
+++ b/demo-circuit/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "demo-circuit"
-version = "0.4.0"
+version = "0.4.1"
 authors = [
     "DanieleDiBenedetto <daniele@horizenlabs.io>",
     "Oleksandr Iozhytsia <oleksandr@zensystem.io>",
@@ -13,25 +13,25 @@ edition = "2018"
 include = ["Cargo.toml", "src"]
 
 [dependencies]
-algebra = {features = ["tweedle"], git = "https://github.com/HorizenOfficial/ginger-lib.git", tag = "0.3.0"}
-primitives = {features = ["tweedle", "signature", "vrf"], git = "https://github.com/HorizenOfficial/ginger-lib.git", tag = "0.3.0"}
-r1cs-crypto = {features = ["tweedle", "signature"], git = "https://github.com/HorizenOfficial/ginger-lib.git", tag = "0.3.0"}
-r1cs-core = {git = "https://github.com/HorizenOfficial/ginger-lib.git", tag = "0.3.0"}
-r1cs-std = {features = ["tweedle"], git = "https://github.com/HorizenOfficial/ginger-lib.git", tag = "0.3.0"}
+algebra = {features = ["tweedle"], git = "https://github.com/HorizenOfficial/ginger-lib.git", tag = "0.3.1"}
+primitives = {features = ["tweedle", "signature", "vrf"], git = "https://github.com/HorizenOfficial/ginger-lib.git", tag = "0.3.1"}
+r1cs-crypto = {features = ["tweedle", "signature"], git = "https://github.com/HorizenOfficial/ginger-lib.git", tag = "0.3.1"}
+r1cs-core = {git = "https://github.com/HorizenOfficial/ginger-lib.git", tag = "0.3.1"}
+r1cs-std = {features = ["tweedle"], git = "https://github.com/HorizenOfficial/ginger-lib.git", tag = "0.3.1"}
 
-cctp_primitives = { git = "https://github.com/HorizenOfficial/zendoo-cctp-lib.git", tag = "0.1.0" }
+cctp_primitives = { git = "https://github.com/HorizenOfficial/zendoo-cctp-lib.git", tag = "0.1.1" }
 
-derivative = "2.2.0"
-lazy_static = "1"
-radix_trie = "0.2.1"
-rand = { version = "0.8.4" }
-blake2 = { version = "0.8.1", default-features = false }
+derivative = "=2.2.0"
+lazy_static = "=1.4.0"
+radix_trie = "=0.2.1"
+rand = { version = "=0.8.4" }
+blake2 = { version = "=0.8.1", default-features = false }
 
 [dev-dependencies]
-digest = "0.8"
-blake2s_simd = "0.5"
-bit-vec = "0.6.1"
+digest = "=0.8.1"
+blake2s_simd = "=0.5.11"
+bit-vec = "=0.6.3"
 
 [features]
 default = [ "asm" ]
-asm = [ "algebra/llvm_asm", "cctp_primitives/asm" ]
\ No newline at end of file
+asm = [ "algebra/llvm_asm", "cctp_primitives/asm" ]
diff --git a/jni/pom.xml b/jni/pom.xml
index ab972c1b..7c180254 100644
--- a/jni/pom.xml
+++ b/jni/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>io.horizen</groupId>
   <artifactId>zendoo-sc-cryptolib</artifactId>
-  <version>0.4.0</version>
+  <version>0.4.1</version>
   <inceptionYear>2020</inceptionYear>
   <packaging>jar</packaging>
   <name>${project.groupId}:${project.artifactId}</name>
diff --git a/ouroboros/Cargo.toml b/ouroboros/Cargo.toml
index da12ae3c..2e30524d 100644
--- a/ouroboros/Cargo.toml
+++ b/ouroboros/Cargo.toml
@@ -1,13 +1,13 @@
 [package]
 name = "ouroboros"
-version = "0.4.0"
+version = "0.4.1"
 authors = ["DanieleDiBenedetto <daniele@horizenlabs.io>"]
 edition = "2018"
 
 [dependencies]
-algebra = { git = "https://github.com/HorizenOfficial/ginger-lib.git",  tag = "0.3.0"}
-primitives = { features = ["vrf"], git = "https://github.com/HorizenOfficial/ginger-lib.git",  tag = "0.3.0"}
-rand = { version = "0.7" }
+algebra = { git = "https://github.com/HorizenOfficial/ginger-lib.git",  tag = "0.3.1"}
+primitives = { features = ["vrf"], git = "https://github.com/HorizenOfficial/ginger-lib.git",  tag = "0.3.1"}
+rand = { version = "=0.8.4" }
 
 [features]
 default = [ "asm" ]