diff --git a/CHANGELOG.md b/CHANGELOG.md
index 18d17e3013a..da8d9b183d2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 * Increase max cached events to 30 (#1029)
 * Normalize DSN URI (#1030)
+* fix: use neutral Locale for String operations #1033
 
 # 3.1.2
 
diff --git a/sentry/src/main/java/io/sentry/Breadcrumb.java b/sentry/src/main/java/io/sentry/Breadcrumb.java
index 996c374493f..cfa4e51a15f 100644
--- a/sentry/src/main/java/io/sentry/Breadcrumb.java
+++ b/sentry/src/main/java/io/sentry/Breadcrumb.java
@@ -55,7 +55,7 @@ public Breadcrumb(final @Nullable Date timestamp) {
     breadcrumb.setType("http");
     breadcrumb.setCategory("http");
     breadcrumb.setData("url", url);
-    breadcrumb.setData("method", method.toUpperCase(Locale.getDefault()));
+    breadcrumb.setData("method", method.toUpperCase(Locale.ROOT));
     return breadcrumb;
   }
 
diff --git a/sentry/src/main/java/io/sentry/config/EnvironmentVariablePropertiesProvider.java b/sentry/src/main/java/io/sentry/config/EnvironmentVariablePropertiesProvider.java
index 1abc2e8fd7f..41ed662b6e8 100644
--- a/sentry/src/main/java/io/sentry/config/EnvironmentVariablePropertiesProvider.java
+++ b/sentry/src/main/java/io/sentry/config/EnvironmentVariablePropertiesProvider.java
@@ -15,7 +15,6 @@ final class EnvironmentVariablePropertiesProvider implements PropertiesProvider
   @Override
   public @Nullable String getProperty(@NotNull String property) {
     return StringUtils.removeSurrounding(
-        System.getenv(PREFIX + "_" + property.replace(".", "_").toUpperCase(Locale.getDefault())),
-        "\"");
+        System.getenv(PREFIX + "_" + property.replace(".", "_").toUpperCase(Locale.ROOT)), "\"");
   }
 }