diff --git a/dev-environment.yml b/dev-environment.yml
index 2243e1c..d8d2568 100644
--- a/dev-environment.yml
+++ b/dev-environment.yml
@@ -20,7 +20,7 @@ channels:
 dependencies:
   - python >= 3.8
   # Project dependencies
-  - jpype1 >= 1.3.0, <= 1.5.0
+  - jpype1 >= 1.3.0
   - jgo
   - openjdk >= 8, < 12
   # Test dependencies
diff --git a/environment.yml b/environment.yml
index b5bfa73..c1038c5 100644
--- a/environment.yml
+++ b/environment.yml
@@ -21,7 +21,7 @@ channels:
 dependencies:
   - python >= 3.8
   # Project dependencies
-  - jpype1 >= 1.3.0, <= 1.5.0
+  - jpype1 >= 1.3.0
   - jgo
   - openjdk >= 8
   # Project from source
diff --git a/pyproject.toml b/pyproject.toml
index d0b7197..93f10f3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -34,7 +34,7 @@ classifiers = [
 # NB: Keep this in sync with environment.yml AND dev-environment.yml!
 requires-python = ">=3.8"
 dependencies = [
-    "jpype1 >= 1.3.0, <= 1.5.0",
+    "jpype1 >= 1.3.0",
     "jgo",
 ]