diff --git a/novelwriter/core/coretools.py b/novelwriter/core/coretools.py
index a4b2a0b1..85341f0e 100644
--- a/novelwriter/core/coretools.py
+++ b/novelwriter/core/coretools.py
@@ -289,7 +289,7 @@ class DocSearch:
 
     def __init__(self) -> None:
         self._regEx = re.compile(r"")
-        self._opts = re.UNICODE | re.IGNORECASE
+        self._opts = re.IGNORECASE
         self._words = False
         self._escape = True
         return
@@ -300,9 +300,7 @@ class DocSearch:
 
     def setCaseSensitive(self, state: bool) -> None:
         """Set the case sensitive search flag."""
-        self._opts = re.UNICODE
-        if not state:
-            self._opts |= re.IGNORECASE
+        self._opts = 0 if state else re.IGNORECASE
         return
 
     def setWholeWords(self, state: bool) -> None:
diff --git a/novelwriter/formats/todocx.py b/novelwriter/formats/todocx.py
index 366191ef..78aaf71d 100644
--- a/novelwriter/formats/todocx.py
+++ b/novelwriter/formats/todocx.py
@@ -51,7 +51,7 @@ if TYPE_CHECKING:
 logger = logging.getLogger(__name__)
 
 # RegEx
-RX_TEXT = re.compile(r"([\n\t])", re.UNICODE)
+RX_TEXT = re.compile(r"([\n\t])")
 
 # Types and Relationships
 OOXML_SCM = "http://schemas.openxmlformats.org"
diff --git a/novelwriter/gui/dochighlight.py b/novelwriter/gui/dochighlight.py
index 8103fd79..8bdb84de 100644
--- a/novelwriter/gui/dochighlight.py
+++ b/novelwriter/gui/dochighlight.py
@@ -139,7 +139,7 @@ class GuiDocHighlighter(QSyntaxHighlighter):
 
         # Multiple or Trailing Spaces
         if CONFIG.showMultiSpaces:
-            rxRule = re.compile(r"[ ]{2,}|[ ]*$", re.UNICODE)
+            rxRule = re.compile(r"[ ]{2,}|[ ]*$")
             hlRule = {
                 0: self._hStyles["mspaces"],
             }
@@ -148,7 +148,7 @@ class GuiDocHighlighter(QSyntaxHighlighter):
             self._cmnRules.append((rxRule, hlRule))
 
         # Non-Breaking Spaces
-        rxRule = re.compile(f"[{nwUnicode.U_NBSP}{nwUnicode.U_THNBSP}]+", re.UNICODE)
+        rxRule = re.compile(f"[{nwUnicode.U_NBSP}{nwUnicode.U_THNBSP}]+")
         hlRule = {
             0: self._hStyles["nobreak"],
         }
@@ -226,7 +226,7 @@ class GuiDocHighlighter(QSyntaxHighlighter):
         self._cmnRules.append((rxRule, hlRule))
 
         # Alignment Tags
-        rxRule = re.compile(r"(^>{1,2}|<{1,2}$)", re.UNICODE)
+        rxRule = re.compile(r"(^>{1,2}|<{1,2}$)")
         hlRule = {
             1: self._hStyles["markup"],
         }
@@ -234,7 +234,7 @@ class GuiDocHighlighter(QSyntaxHighlighter):
         self._txtRules.append((rxRule, hlRule))
 
         # Auto-Replace Tags
-        rxRule = re.compile(r"<(\S+?)>", re.UNICODE)
+        rxRule = re.compile(r"<(\S+?)>")
         hlRule = {
             0: self._hStyles["replace"],
         }
diff --git a/novelwriter/text/patterns.py b/novelwriter/text/patterns.py
index a5d2b3e9..e0231d78 100644
--- a/novelwriter/text/patterns.py
+++ b/novelwriter/text/patterns.py
@@ -37,13 +37,13 @@ class RegExPatterns:
 
     # Static RegExes
     _rxUrl     = re.compile(nwRegEx.URL, re.ASCII)
-    _rxWords   = re.compile(nwRegEx.WORDS, re.UNICODE)
-    _rxBreak   = re.compile(nwRegEx.BREAK, re.UNICODE)
-    _rxItalic  = re.compile(nwRegEx.FMT_EI, re.UNICODE)
-    _rxBold    = re.compile(nwRegEx.FMT_EB, re.UNICODE)
-    _rxStrike  = re.compile(nwRegEx.FMT_ST, re.UNICODE)
-    _rxSCPlain = re.compile(nwRegEx.FMT_SC, re.UNICODE)
-    _rxSCValue = re.compile(nwRegEx.FMT_SV, re.UNICODE)
+    _rxWords   = re.compile(nwRegEx.WORDS)
+    _rxBreak   = re.compile(nwRegEx.BREAK)
+    _rxItalic  = re.compile(nwRegEx.FMT_EI)
+    _rxBold    = re.compile(nwRegEx.FMT_EB)
+    _rxStrike  = re.compile(nwRegEx.FMT_ST)
+    _rxSCPlain = re.compile(nwRegEx.FMT_SC)
+    _rxSCValue = re.compile(nwRegEx.FMT_SV)
 
     @property
     def url(self) -> re.Pattern:
@@ -108,7 +108,7 @@ class RegExPatterns:
                     rx.append(f"(?:{qO}[^{qO}]+{qC})")
                 if CONFIG.allowOpenDial:
                     rx.append(f"(?:{qO}.+?$)")
-            return re.compile("|".join(rx), re.UNICODE)
+            return re.compile("|".join(rx))
         return None
 
     @property
@@ -118,7 +118,7 @@ class RegExPatterns:
             qO = re.escape(compact(CONFIG.altDialogOpen))
             qC = re.escape(compact(CONFIG.altDialogClose))
             qB = r"\B" if (qO == qC or qC in self.AMBIGUOUS) else ""
-            return re.compile(f"{qO}.*?{qC}{qB}", re.UNICODE)
+            return re.compile(f"{qO}.*?{qC}{qB}")
         return None
 
 
@@ -163,8 +163,8 @@ class DialogParser:
         # Build narrator break RegExes
         if narrator := CONFIG.narratorBreak.strip()[:1]:
             punct = re.escape(".,:;!?")
-            self._breakD = re.compile(f"{narrator}.*?(?:{narrator}[{punct}]?|$)", re.UNICODE)
-            self._breakQ = re.compile(f"{narrator}.*?(?:{narrator}[{punct}]?)", re.UNICODE)
+            self._breakD = re.compile(f"{narrator}.*?(?:{narrator}[{punct}]?|$)")
+            self._breakQ = re.compile(f"{narrator}.*?(?:{narrator}[{punct}]?)")
             self._narrator = narrator
             self._mode = f" {narrator}"