diff --git a/geo-bool-ops-benches/Cargo.toml b/geo-bool-ops-benches/Cargo.toml
index c34cce313..bbdef9b25 100644
--- a/geo-bool-ops-benches/Cargo.toml
+++ b/geo-bool-ops-benches/Cargo.toml
@@ -11,7 +11,7 @@ geo-types = { path = "../geo-types" }
 log = "0.4.11"
 
 [dev-dependencies]
-approx = "0.4.0"
+approx = ">= 0.4.0, < 0.6.0"
 criterion = { version = "0.3", features = ["html_reports"] }
 geo-test-fixtures = { path = "../geo-test-fixtures" }
 jts-test-runner = { path = "../jts-test-runner" }
diff --git a/geo-types/Cargo.toml b/geo-types/Cargo.toml
index 1e2ce25ca..49dede926 100644
--- a/geo-types/Cargo.toml
+++ b/geo-types/Cargo.toml
@@ -19,7 +19,7 @@ use-rstar_0_8 = ["rstar_0_8", "approx"]
 use-rstar_0_9 = ["rstar_0_9", "approx"]
 
 [dependencies]
-approx = { version = "0.4.0", optional = true }
+approx = { version = ">= 0.4.0, < 0.6.0", optional = true }
 arbitrary = { version = "1", optional = true }
 num-traits = "0.2"
 rstar_0_8 = { package = "rstar", version = "0.8", optional = true }
@@ -27,4 +27,4 @@ rstar_0_9 = { package = "rstar", version = "0.9", optional = true }
 serde = { version = "1", optional = true, features = ["derive"] }
 
 [dev-dependencies]
-approx = "0.4.0"
+approx = ">= 0.4.0, < 0.6.0"
diff --git a/geo/Cargo.toml b/geo/Cargo.toml
index 9dd4e4658..a6b65368f 100644
--- a/geo/Cargo.toml
+++ b/geo/Cargo.toml
@@ -21,13 +21,13 @@ geo-types = { version = "0.7.5", features = ["approx", "use-rstar_0_9"] }
 geographiclib-rs = "0.2"
 log = "0.4.11"
 num-traits = "0.2"
-proj = { version = "0.26.0", optional = true }
+proj = { version = "0.27.0", optional = true }
 robust = "0.2.2"
 rstar = "0.9.3"
 serde = { version = "1.0", optional = true, features = ["derive"] }
 
 [dev-dependencies]
-approx = "0.4.0"
+approx = ">= 0.4.0, < 0.6.0"
 criterion = { version = "0.3", features = ["html_reports"] }
 geo-test-fixtures = { path = "../geo-test-fixtures" }
 jts-test-runner = { path = "../jts-test-runner" }
diff --git a/geo/src/algorithm/transform.rs b/geo/src/algorithm/transform.rs
index db535904b..40cfa07d6 100644
--- a/geo/src/algorithm/transform.rs
+++ b/geo/src/algorithm/transform.rs
@@ -1,4 +1,4 @@
-pub use proj::{Area, Coord, Info, Proj, ProjBuilder, ProjError, Projinfo, Transform};
+pub use proj::{Area, Coord, Info, Proj, ProjBuilder, ProjError, ProjInfo, Transform};
 
 #[cfg(test)]
 mod tests {
diff --git a/jts-test-runner/Cargo.toml b/jts-test-runner/Cargo.toml
index 619f15234..dd4a5badc 100644
--- a/jts-test-runner/Cargo.toml
+++ b/jts-test-runner/Cargo.toml
@@ -4,7 +4,7 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
-approx = "0.4.0"
+approx = ">= 0.4.0, < 0.6.0"
 geo = { path = "../geo" }
 include_dir = { version = "0.7.2", features = ["glob"] }
 log = "0.4.14"